Patches!

patches/server/API-to-get-a-BlockState-without-a-snapshot.patch

@@ -0,0 +1,165 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 6 Nov 2017 21:08:22 -0500
+Subject: [PATCH] API to get a BlockState without a snapshot
+
+This allows you to get a BlockState without creating a snapshot, operating
+on the real tile entity.
+
+This is useful for where performance is needed
+
+also Avoid NPE during CraftBlockEntityState load if could not get TE
+
+If Tile Entity was null, correct Sign to return empty lines instead of null
+
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+@@ -0,0 +0,0 @@ public abstract class BlockEntity {
+         this.type = type;
+         this.worldPosition = pos.immutable();
+         this.blockState = state;
++        this.persistentDataContainer = new CraftPersistentDataContainer(DATA_TYPE_REGISTRY); // Paper - always init
+     }
+ 
+     public static BlockPos getPosFromTag(CompoundTag nbt) {
+@@ -0,0 +0,0 @@ public abstract class BlockEntity {
+ 
+     // CraftBukkit start - read container
+     protected void loadAdditional(CompoundTag nbt, HolderLookup.Provider registryLookup) {
+-        this.persistentDataContainer = new CraftPersistentDataContainer(BlockEntity.DATA_TYPE_REGISTRY);
++        this.persistentDataContainer.clear(); // Paper - clear instead of init
+ 
+         net.minecraft.nbt.Tag persistentDataTag = nbt.get("PublicBukkitValues");
+         if (persistentDataTag instanceof CompoundTag) {
+@@ -0,0 +0,0 @@ public abstract class BlockEntity {
+ 
+     // CraftBukkit start - add method
+     public InventoryHolder getOwner() {
++        // Paper start
++        return getOwner(true);
++    }
++    public InventoryHolder getOwner(boolean useSnapshot) {
++        // Paper end
+         if (this.level == null) return null;
+-        org.bukkit.block.BlockState state = this.level.getWorld().getBlockAt(this.worldPosition.getX(), this.worldPosition.getY(), this.worldPosition.getZ()).getState();
++        org.bukkit.block.Block block = this.level.getWorld().getBlockAt(this.worldPosition.getX(), this.worldPosition.getY(), this.worldPosition.getZ());
++        if (block.getType() == org.bukkit.Material.AIR) return null;
++        org.bukkit.block.BlockState state = block.getState(useSnapshot); // Paper
+         if (state instanceof InventoryHolder) return (InventoryHolder) state;
+         return null;
+     }
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+@@ -0,0 +0,0 @@ public class CraftBlock implements Block {
+         return CraftBlockStates.getBlockState(this);
+     }
+ 
++    // Paper start
++    @Override
++    public BlockState getState(boolean useSnapshot) {
++        return CraftBlockStates.getBlockState(this, useSnapshot);
++    }
++    // Paper end
++
+     @Override
+     public Biome getBiome() {
+         return this.getWorld().getBiome(this.getX(), this.getY(), this.getZ());
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java
+@@ -0,0 +0,0 @@ public class CraftBlockEntityState<T extends BlockEntity> extends CraftBlockStat
+ 
+     private final T tileEntity;
+     private final T snapshot;
++    public boolean snapshotDisabled; // Paper
++    public static boolean DISABLE_SNAPSHOT = false; // Paper
+ 
+     public CraftBlockEntityState(World world, T tileEntity) {
+         super(world, tileEntity.getBlockPos(), tileEntity.getBlockState());
+ 
+         this.tileEntity = tileEntity;
+ 
++        // Paper start
++        this.snapshotDisabled = DISABLE_SNAPSHOT;
++        if (DISABLE_SNAPSHOT) {
++            this.snapshot = this.tileEntity;
++        } else {
++            this.snapshot = this.createSnapshot(tileEntity);
++        }
+         // copy tile entity data:
+-        this.snapshot = this.createSnapshot(tileEntity);
+-        this.load(this.snapshot);
++        if (this.snapshot != null) {
++            this.load(this.snapshot);
++        }
++        // Paper end
+     }
+ 
+     protected CraftBlockEntityState(CraftBlockEntityState<T> state, Location location) {
+@@ -0,0 +0,0 @@ public class CraftBlockEntityState<T extends BlockEntity> extends CraftBlockStat
+     public CraftBlockEntityState<T> copy(Location location) {
+         return new CraftBlockEntityState<>(this, location);
+     }
++
++    // Paper start
++    @Override
++    public boolean isSnapshot() {
++        return !this.snapshotDisabled;
++    }
++    // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+@@ -0,0 +0,0 @@ public final class CraftBlockStates {
+     }
+ 
+     public static BlockState getBlockState(Block block) {
++        // Paper start
++        return CraftBlockStates.getBlockState(block, true);
++    }
++    public static BlockState getBlockState(Block block, boolean useSnapshot) {
++        // Paper end
+         Preconditions.checkNotNull(block, "block is null");
+         CraftBlock craftBlock = (CraftBlock) block;
+         CraftWorld world = (CraftWorld) block.getWorld();
+         BlockPos blockPosition = craftBlock.getPosition();
+         net.minecraft.world.level.block.state.BlockState blockData = craftBlock.getNMS();
+         BlockEntity tileEntity = craftBlock.getHandle().getBlockEntity(blockPosition);
++        // Paper start - block state snapshots
++        boolean prev = CraftBlockEntityState.DISABLE_SNAPSHOT;
++        CraftBlockEntityState.DISABLE_SNAPSHOT = !useSnapshot;
++        try {
++        // Paper end
+         CraftBlockState blockState = CraftBlockStates.getBlockState(world, blockPosition, blockData, tileEntity);
+         blockState.setWorldHandle(craftBlock.getHandle()); // Inject the block's generator access
+         return blockState;
++        // Paper start
++        } finally {
++            CraftBlockEntityState.DISABLE_SNAPSHOT = prev;
++        }
++        // Paper end
+     }
+ 
+     @Deprecated
+diff --git a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
++++ b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
+@@ -0,0 +0,0 @@ public class CraftPersistentDataContainer implements PersistentDataContainer {
+     public String serialize() {
+         return CraftNBTTagConfigSerializer.serialize(this.toTagCompound());
+     }
++
++    // Paper start
++    public void clear() {
++        this.customDataTags.clear();
++    }
++    // Paper end
+ }

patches/server/Ability-to-apply-mending-to-XP-API.patch

@@ -0,0 +1,58 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Wed, 20 Dec 2017 17:36:49 -0500
+Subject: [PATCH] Ability to apply mending to XP API
+
+This allows plugins that give players the ability to apply the experience
+points to the Item Mending formula, which will repair an item instead
+of giving the player experience points.
+
+Both an API To standalone mend, and apply mending logic to .giveExp has been added.
+
+== AT ==
+public net.minecraft.world.entity.ExperienceOrb durabilityToXp(I)I
+public net.minecraft.world.entity.ExperienceOrb xpToDurability(I)I
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -0,0 +0,0 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+     }
+ 
+     @Override
+-    public void giveExp(int exp) {
++    // Paper start
++    public int applyMending(int amount) {
++        ServerPlayer handle = this.getHandle();
++        // Logic copied from EntityExperienceOrb and remapped to unobfuscated methods/properties
++        final var stackEntry = net.minecraft.world.item.enchantment.EnchantmentHelper
++            .getRandomItemWith(net.minecraft.world.item.enchantment.Enchantments.MENDING, handle);
++        final net.minecraft.world.item.ItemStack itemstack = stackEntry != null ? stackEntry.getValue() : net.minecraft.world.item.ItemStack.EMPTY;
++        if (!itemstack.isEmpty() && itemstack.getItem().canBeDepleted()) {
++            net.minecraft.world.entity.ExperienceOrb orb = net.minecraft.world.entity.EntityType.EXPERIENCE_ORB.create(handle.level());
++            orb.value = amount;
++            orb.spawnReason = org.bukkit.entity.ExperienceOrb.SpawnReason.CUSTOM;
++            orb.setPosRaw(handle.getX(), handle.getY(), handle.getZ());
++
++            int i = Math.min(orb.xpToDurability(amount), itemstack.getDamageValue());
++            org.bukkit.event.player.PlayerItemMendEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemMendEvent(handle, orb, itemstack, stackEntry.getKey(), i);
++            i = event.getRepairAmount();
++            orb.discard(org.bukkit.event.entity.EntityRemoveEvent.Cause.DESPAWN);
++            if (!event.isCancelled()) {
++                amount -= orb.durabilityToXp(i);
++                itemstack.setDamageValue(itemstack.getDamageValue() - i);
++            }
++        }
++        return amount;
++    }
++
++    @Override
++    public void giveExp(int exp, boolean applyMending) {
++        if (applyMending) {
++            exp = this.applyMending(exp);
++        }
++        // Paper end
+         this.getHandle().giveExperiencePoints(exp);
+     }
+ 

patches/server/Add-API-methods-to-control-if-armor-stands-can-move.patch

@@ -0,0 +1,52 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <rileysebastianpark@gmail.com>
+Date: Wed, 21 Dec 2016 11:47:25 -0600
+Subject: [PATCH] Add API methods to control if armor stands can move
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
++++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
+@@ -0,0 +0,0 @@ public class ArmorStand extends LivingEntity {
+     public Rotations rightArmPose;
+     public Rotations leftLegPose;
+     public Rotations rightLegPose;
++    public boolean canMove = true; // Paper
+ 
+     public ArmorStand(EntityType<? extends ArmorStand> type, Level world) {
+         super(type, world);
+@@ -0,0 +0,0 @@ public class ArmorStand extends LivingEntity {
+     public boolean canBeSeenByAnyone() {
+         return !this.isInvisible() && !this.isMarker();
+     }
++
++    // Paper start
++    @Override
++    public void move(net.minecraft.world.entity.MoverType type, Vec3 movement) {
++        if (this.canMove) {
++            super.move(type, movement);
++        }
++    }
++    // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java
+@@ -0,0 +0,0 @@ public class CraftArmorStand extends CraftLivingEntity implements ArmorStand {
+     public boolean hasEquipmentLock(EquipmentSlot equipmentSlot, LockType lockType) {
+         return (this.getHandle().disabledSlots & (1 << CraftEquipmentSlot.getNMS(equipmentSlot).getFilterFlag() + lockType.ordinal() * 8)) != 0;
+     }
++    // Paper start
++    @Override
++    public boolean canMove() {
++        return getHandle().canMove;
++    }
++
++    @Override
++    public void setCanMove(boolean move) {
++        getHandle().canMove = move;
++    }
++    // Paper end
+ }

patches/server/Add-EntityZapEvent.patch

@@ -0,0 +1,48 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: AlphaBlend <whizkid3000@hotmail.com>
+Date: Sun, 16 Oct 2016 23:19:30 -0700
+Subject: [PATCH] Add EntityZapEvent
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/npc/Villager.java b/src/main/java/net/minecraft/world/entity/npc/Villager.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
++++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
+@@ -0,0 +0,0 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
+     @Override
+     public void thunderHit(ServerLevel world, LightningBolt lightning) {
+         if (world.getDifficulty() != Difficulty.PEACEFUL) {
+-            Villager.LOGGER.info("Villager {} was struck by lightning {}.", this, lightning);
++            // Paper - Add EntityZapEvent; move log down, event can cancel
+             Witch entitywitch = (Witch) EntityType.WITCH.create(world);
+ 
+             if (entitywitch != null) {
++                // Paper start - Add EntityZapEvent
++                if (org.bukkit.craftbukkit.event.CraftEventFactory.callEntityZapEvent(this, lightning, entitywitch).isCancelled()) {
++                    return;
++                }
++                if (org.spigotmc.SpigotConfig.logVillagerDeaths) Villager.LOGGER.info("Villager {} was struck by lightning {}.", this, lightning); // Move down
++                // Paper end - Add EntityZapEvent
++
+                 entitywitch.moveTo(this.getX(), this.getY(), this.getZ(), this.getYRot(), this.getXRot());
+                 entitywitch.finalizeSpawn(world, world.getCurrentDifficultyAt(entitywitch.blockPosition()), MobSpawnType.CONVERSION, (SpawnGroupData) null);
+                 entitywitch.setNoAi(this.isNoAi());
+diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
++++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+@@ -0,0 +0,0 @@ public class CraftEventFactory {
+         return !event.isCancelled();
+     }
+ 
++    // Paper start
++    public static com.destroystokyo.paper.event.entity.EntityZapEvent callEntityZapEvent(Entity entity, Entity lightning, Entity changedEntity) {
++        com.destroystokyo.paper.event.entity.EntityZapEvent event = new com.destroystokyo.paper.event.entity.EntityZapEvent(entity.getBukkitEntity(), (LightningStrike) lightning.getBukkitEntity(), changedEntity.getBukkitEntity());
++        entity.getBukkitEntity().getServer().getPluginManager().callEvent(event);
++        return event;
++    }
++    // Paper end
++
+     public static boolean callEntityChangeBlockEvent(Entity entity, BlockPos position, net.minecraft.world.level.block.state.BlockState newBlock) {
+         return CraftEventFactory.callEntityChangeBlockEvent(entity, position, newBlock, false);
+     }

patches/server/Add-PlayerArmorChangeEvent.patch

@@ -0,0 +1,104 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: pkt77 <parkerkt77@gmail.com>
+Date: Fri, 10 Nov 2017 23:46:34 -0500
+Subject: [PATCH] Add PlayerArmorChangeEvent
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+             ItemStack itemstack2 = this.getItemBySlot(enumitemslot);
+ 
+             if (this.equipmentHasChanged(itemstack1, itemstack2)) {
++                // Paper start - PlayerArmorChangeEvent
++                if (this instanceof ServerPlayer && enumitemslot.getType() == EquipmentSlot.Type.ARMOR) {
++                    final org.bukkit.inventory.ItemStack oldItem = CraftItemStack.asBukkitCopy(itemstack1);
++                    final org.bukkit.inventory.ItemStack newItem = CraftItemStack.asBukkitCopy(itemstack2);
++                    new com.destroystokyo.paper.event.player.PlayerArmorChangeEvent((Player) this.getBukkitEntity(), com.destroystokyo.paper.event.player.PlayerArmorChangeEvent.SlotType.valueOf(enumitemslot.name()), oldItem, newItem).callEvent();
++                }
++                // Paper end - PlayerArmorChangeEvent
+                 if (map == null) {
+                     map = Maps.newEnumMap(EquipmentSlot.class);
+                 }
+diff --git a/src/test/java/io/papermc/paper/inventory/item/ArmorSlotTypeMaterialTest.java b/src/test/java/io/papermc/paper/inventory/item/ArmorSlotTypeMaterialTest.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/test/java/io/papermc/paper/inventory/item/ArmorSlotTypeMaterialTest.java
+@@ -0,0 +0,0 @@
++package io.papermc.paper.inventory.item;
++
++import com.destroystokyo.paper.event.player.PlayerArmorChangeEvent;
++import java.util.ArrayList;
++import java.util.List;
++import java.util.stream.Stream;
++import net.minecraft.world.entity.EquipmentSlot;
++import net.minecraft.world.item.Equipable;
++import net.minecraft.world.item.Item;
++import net.minecraft.world.item.ItemStack;
++import org.bukkit.Material;
++import org.bukkit.craftbukkit.util.CraftMagicNumbers;
++import org.bukkit.support.AbstractTestingBase;
++import org.junit.jupiter.params.ParameterizedTest;
++import org.junit.jupiter.params.provider.MethodSource;
++
++import static org.junit.jupiter.api.Assertions.assertEquals;
++import static org.junit.jupiter.api.Assertions.assertNotNull;
++import static org.junit.jupiter.api.Assertions.assertTrue;
++
++public class ArmorSlotTypeMaterialTest extends AbstractTestingBase {
++
++    public static Stream<Object[]> slotTypeParams() {
++        final List<Object[]> parameters = new ArrayList<>();
++        for (final PlayerArmorChangeEvent.SlotType slotType : PlayerArmorChangeEvent.SlotType.values()) {
++            for (final Material item : slotType.getTypes()) {
++                parameters.add(new Object[]{ slotType, item });
++            }
++        }
++        return parameters.stream();
++    }
++
++    @ParameterizedTest(name = "{argumentsWithNames}")
++    @MethodSource("slotTypeParams")
++    public void testSlotType(PlayerArmorChangeEvent.SlotType slotType, Material item) {
++        final Item nmsItem = CraftMagicNumbers.getItem(item);
++        final Equipable equipable = Equipable.get(new ItemStack(nmsItem));
++        assertNotNull(equipable, item + " isn't equipable");
++        final EquipmentSlot slot = switch (slotType) {
++            case HEAD -> EquipmentSlot.HEAD;
++            case CHEST -> EquipmentSlot.CHEST;
++            case LEGS -> EquipmentSlot.LEGS;
++            case FEET -> EquipmentSlot.FEET;
++        };
++        assertEquals(equipable.getEquipmentSlot(), slot, item + " isn't set to the right slot");
++    }
++
++    public static Stream<Object[]> equipableParams() {
++        final List<Object[]> parameters = new ArrayList<>();
++        for (final Item item : net.minecraft.core.registries.BuiltInRegistries.ITEM) {
++            final Equipable equipable = Equipable.get(new ItemStack(item));
++            if (equipable != null) {
++                parameters.add(new Object[]{equipable, item});
++            }
++        }
++        return parameters.stream();
++    }
++
++    @ParameterizedTest(name = "{argumentsWithNames}")
++    @MethodSource("equipableParams")
++    public void testEquipable(Equipable equipable, Item item) {
++        final EquipmentSlot equipmentSlot = equipable.getEquipmentSlot();
++        PlayerArmorChangeEvent.SlotType slotType = switch (equipmentSlot) {
++            case HEAD -> PlayerArmorChangeEvent.SlotType.HEAD;
++            case CHEST -> PlayerArmorChangeEvent.SlotType.CHEST;
++            case LEGS -> PlayerArmorChangeEvent.SlotType.LEGS;
++            case FEET -> PlayerArmorChangeEvent.SlotType.FEET;
++            default -> null;
++        };
++        if (slotType != null) {
++            assertTrue(slotType.getTypes().contains(CraftMagicNumbers.getMaterial(item)), "SlotType " + slotType + " doesn't include " + item);
++        }
++    }
++}

patches/server/Add-PlayerInitialSpawnEvent.patch

@@ -0,0 +1,38 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Steve Anton <anxuiz.nx@gmail.com>
+Date: Thu, 3 Mar 2016 00:09:38 -0600
+Subject: [PATCH] Add PlayerInitialSpawnEvent
+
+For modifying a player's initial spawn location as they join the server
+
+This is a duplicate API from spigot, so use our duplicate subclass and
+improve setPosition to use raw
+
+== AT ==
+public net.minecraft.world.entity.Entity setRot(FF)V
+
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
++++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+ 
+         // Spigot start - spawn location event
+         Player spawnPlayer = player.getBukkitEntity();
+-        org.spigotmc.event.player.PlayerSpawnLocationEvent ev = new org.spigotmc.event.player.PlayerSpawnLocationEvent(spawnPlayer, spawnPlayer.getLocation());
++        org.spigotmc.event.player.PlayerSpawnLocationEvent ev = new com.destroystokyo.paper.event.player.PlayerInitialSpawnEvent(spawnPlayer, spawnPlayer.getLocation()); // Paper use our duplicate event
+         this.cserver.getPluginManager().callEvent(ev);
+ 
+         Location loc = ev.getSpawnLocation();
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+ 
+         player.spawnIn(worldserver1);
+         player.gameMode.setLevel((ServerLevel) player.level());
+-        player.absMoveTo(loc.getX(), loc.getY(), loc.getZ(), loc.getYaw(), loc.getPitch());
++        // Paper start - set raw so we aren't fully joined to the world (not added to chunk or world)
++        player.setPosRaw(loc.getX(), loc.getY(), loc.getZ());
++        player.setRot(loc.getYaw(), loc.getPitch());
++        // Paper end - set raw so we aren't fully joined to the world
+         // Spigot end
+ 
+         // CraftBukkit - Moved message to after join

patches/server/Add-PlayerJumpEvent.patch

@@ -0,0 +1,46 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Thu, 28 Sep 2017 17:21:44 -0400
+Subject: [PATCH] Add PlayerJumpEvent
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+                             boolean flag1 = d7 > 0.0D;
+ 
+                             if (this.player.onGround() && !packet.isOnGround() && flag1) {
+-                                this.player.jumpFromGround();
++                                // Paper start - Add PlayerJumpEvent
++                                Player player = this.getCraftPlayer();
++                                Location from = new Location(player.getWorld(), lastPosX, lastPosY, lastPosZ, lastYaw, lastPitch); // Get the Players previous Event location.
++                                Location to = player.getLocation().clone(); // Start off the To location as the Players current location.
++
++                                // If the packet contains movement information then we update the To location with the correct XYZ.
++                                if (packet.hasPos) {
++                                    to.setX(packet.x);
++                                    to.setY(packet.y);
++                                    to.setZ(packet.z);
++                                }
++
++                                // If the packet contains look information then we update the To location with the correct Yaw & Pitch.
++                                if (packet.hasRot) {
++                                    to.setYaw(packet.yRot);
++                                    to.setPitch(packet.xRot);
++                                }
++
++                                com.destroystokyo.paper.event.player.PlayerJumpEvent event = new com.destroystokyo.paper.event.player.PlayerJumpEvent(player, from, to);
++
++                                if (event.callEvent()) {
++                                    this.player.jumpFromGround();
++                                } else {
++                                    from = event.getFrom();
++                                    this.internalTeleport(from.getX(), from.getY(), from.getZ(), from.getYaw(), from.getPitch(), Collections.emptySet());
++                                    return;
++                                }
++                                // Paper end - Add PlayerJumpEvent
+                             }
+ 
+                             boolean flag2 = this.player.verticalCollisionBelow;

patches/server/Add-PlayerUseUnknownEntityEvent.patch

@@ -0,0 +1,78 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jedediah Smith <jedediah@silencegreys.com>
+Date: Sat, 2 Apr 2016 05:09:16 -0400
+Subject: [PATCH] Add PlayerUseUnknownEntityEvent
+
+Adds the PlayerUseUnknownEntityEvent to be used by plugins dealing with
+virtual entities/entities that are not actually known to the server.
+
+Co-authored-by: Nassim Jahnke <nassim@njahnke.dev>
+
+diff --git a/src/main/java/net/minecraft/network/protocol/game/ServerboundInteractPacket.java b/src/main/java/net/minecraft/network/protocol/game/ServerboundInteractPacket.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/protocol/game/ServerboundInteractPacket.java
++++ b/src/main/java/net/minecraft/network/protocol/game/ServerboundInteractPacket.java
+@@ -0,0 +0,0 @@ public class ServerboundInteractPacket implements Packet<ServerGamePacketListene
+             buf.writeEnum(this.hand);
+         }
+     }
++
++    // Paper start - PlayerUseUnknownEntityEvent
++    public int getEntityId() {
++        return this.entityId;
++    }
++
++    public boolean isAttack() {
++        return this.action.getType() == ActionType.ATTACK;
++    }
++    // Paper end - PlayerUseUnknownEntityEvent
+ }
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+                 });
+             }
+         }
++        // Paper start - PlayerUseUnknownEntityEvent
++        else {
++            packet.dispatch(new net.minecraft.network.protocol.game.ServerboundInteractPacket.Handler() {
++                @Override
++                public void onInteraction(net.minecraft.world.InteractionHand hand) {
++                    CraftEventFactory.callPlayerUseUnknownEntityEvent(ServerGamePacketListenerImpl.this.player, packet, hand, null);
++                }
++
++                @Override
++                public void onInteraction(net.minecraft.world.InteractionHand hand, net.minecraft.world.phys.Vec3 pos) {
++                    CraftEventFactory.callPlayerUseUnknownEntityEvent(ServerGamePacketListenerImpl.this.player, packet, hand, pos);
++                }
+ 
++                @Override
++                public void onAttack() {
++                    CraftEventFactory.callPlayerUseUnknownEntityEvent(ServerGamePacketListenerImpl.this.player, packet, net.minecraft.world.InteractionHand.MAIN_HAND, null);
++                }
++            });
++        }
++        // Paper end - PlayerUseUnknownEntityEvent
+     }
+ 
+     @Override
+diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
++++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+@@ -0,0 +0,0 @@ public class CraftEventFactory {
+ 
+         Bukkit.getPluginManager().callEvent(new EntityRemoveEvent(entity.getBukkitEntity(), cause));
+     }
++    // Paper start - PlayerUseUnknownEntityEvent
++    public static void callPlayerUseUnknownEntityEvent(net.minecraft.world.entity.player.Player player, net.minecraft.network.protocol.game.ServerboundInteractPacket packet, InteractionHand hand, @Nullable net.minecraft.world.phys.Vec3 vector) {
++        new com.destroystokyo.paper.event.player.PlayerUseUnknownEntityEvent(
++            (Player) player.getBukkitEntity(), packet.getEntityId(), packet.isAttack(),
++            CraftEquipmentSlot.getHand(hand),
++            vector != null ? CraftVector.toBukkit(vector) : null
++        ).callEvent();
++    }
++    // Paper end - PlayerUseUnknownEntityEvent
+ }

patches/server/Add-ProjectileCollideEvent.patch

@@ -0,0 +1,45 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Techcable <Techcable@outlook.com>
+Date: Fri, 16 Dec 2016 21:25:39 -0600
+Subject: [PATCH] Add ProjectileCollideEvent
+
+Deprecated now and replaced with ProjectileHitEvent
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
++++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+@@ -0,0 +0,0 @@ public class CraftEventFactory {
+         return CraftItemStack.asNMSCopy(bitem);
+     }
+ 
++    // Paper start
++    @Deprecated
++    public static com.destroystokyo.paper.event.entity.ProjectileCollideEvent callProjectileCollideEvent(Entity entity, EntityHitResult position) {
++        Projectile projectile = (Projectile) entity.getBukkitEntity();
++        org.bukkit.entity.Entity collided = position.getEntity().getBukkitEntity();
++        com.destroystokyo.paper.event.entity.ProjectileCollideEvent event = new com.destroystokyo.paper.event.entity.ProjectileCollideEvent(projectile, collided);
++        Bukkit.getPluginManager().callEvent(event);
++        return event;
++    }
++    // Paper end
++
+     public static ProjectileLaunchEvent callProjectileLaunchEvent(Entity entity) {
+         Projectile bukkitEntity = (Projectile) entity.getBukkitEntity();
+         ProjectileLaunchEvent event = new ProjectileLaunchEvent(bukkitEntity);
+@@ -0,0 +0,0 @@ public class CraftEventFactory {
+         if (position.getType() == HitResult.Type.ENTITY) {
+             hitEntity = ((EntityHitResult) position).getEntity().getBukkitEntity();
+         }
++        // Paper start - legacy event
++        boolean cancelled = false;
++        if (hitEntity != null && position instanceof EntityHitResult entityHitResult) {
++            cancelled = callProjectileCollideEvent(entity, entityHitResult).isCancelled();
++        }
++        // Paper end
+ 
+         ProjectileHitEvent event = new ProjectileHitEvent((Projectile) entity.getBukkitEntity(), hitEntity, hitBlock, hitFace);
++        event.setCancelled(cancelled); // Paper - propagate legacy event cancellation to modern event
+         entity.level().getCraftServer().getPluginManager().callEvent(event);
+         return event;
+     }

patches/server/Add-UnknownCommandEvent.patch

@@ -0,0 +1,128 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Sweepyoface <github@sweepy.pw>
+Date: Sat, 17 Jun 2017 18:48:21 -0400
+Subject: [PATCH] Add UnknownCommandEvent
+
+Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
+
+diff --git a/src/main/java/net/minecraft/commands/CommandSourceStack.java b/src/main/java/net/minecraft/commands/CommandSourceStack.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/commands/CommandSourceStack.java
++++ b/src/main/java/net/minecraft/commands/CommandSourceStack.java
+@@ -0,0 +0,0 @@ public class CommandSourceStack implements ExecutionCommandSource<CommandSourceS
+     }
+ 
+     public void sendFailure(Component message) {
++        // Paper start - Add UnknownCommandEvent
++        this.sendFailure(message, true);
++    }
++    public void sendFailure(Component message, boolean withStyle) {
++        // Paper end - Add UnknownCommandEvent
+         if (this.source.acceptsFailure() && !this.silent) {
+-            this.source.sendSystemMessage(Component.empty().append(message).withStyle(ChatFormatting.RED));
++            this.source.sendSystemMessage(withStyle ? Component.empty().append(message).withStyle(ChatFormatting.RED) : message); // Paper - Add UnknownCommandEvent
+         }
+ 
+     }
+diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/commands/Commands.java
++++ b/src/main/java/net/minecraft/commands/Commands.java
+@@ -0,0 +0,0 @@ public class Commands {
+     public static final int LEVEL_ADMINS = 3;
+     public static final int LEVEL_OWNERS = 4;
+     private final com.mojang.brigadier.CommandDispatcher<CommandSourceStack> dispatcher = new com.mojang.brigadier.CommandDispatcher();
++    public final java.util.List<CommandNode<CommandSourceStack>> vanillaCommandNodes = new java.util.ArrayList<>(); // Paper - Add UnknownCommandEvent
+ 
+     public Commands(Commands.CommandSelection environment, CommandBuildContext commandRegistryAccess) {
+         this(); // CraftBukkit
+@@ -0,0 +0,0 @@ public class Commands {
+         if (environment.includeIntegrated) {
+             PublishCommand.register(this.dispatcher);
+         }
++        this.vanillaCommandNodes.addAll(this.dispatcher.getRoot().getChildren()); // Paper - Add UnknownCommandEvent
+ 
+         // CraftBukkit start
+     }
+@@ -0,0 +0,0 @@ public class Commands {
+         commandlistenerwrapper.getServer().getProfiler().push(() -> {
+             return "/" + s;
+         });
+-        ContextChain<CommandSourceStack> contextchain = Commands.finishParsing(parseresults, s, commandlistenerwrapper, label); // CraftBukkit
++        ContextChain contextchain = this.finishParsing(parseresults, s, commandlistenerwrapper, label); // CraftBukkit // Paper - Add UnknownCommandEvent
+ 
+         try {
+             if (contextchain != null) {
+@@ -0,0 +0,0 @@ public class Commands {
+     }
+ 
+     @Nullable
+-    private static ContextChain<CommandSourceStack> finishParsing(ParseResults<CommandSourceStack> parseresults, String s, CommandSourceStack commandlistenerwrapper, String label) { // CraftBukkit
++    private ContextChain<CommandSourceStack> finishParsing(ParseResults<CommandSourceStack> parseresults, String s, CommandSourceStack commandlistenerwrapper, String label) { // CraftBukkit // Paper - Add UnknownCommandEvent
+         try {
+             Commands.validateParseResults(parseresults);
+             return (ContextChain) ContextChain.tryFlatten(parseresults.getContext().build(s)).orElseThrow(() -> {
+                 return CommandSyntaxException.BUILT_IN_EXCEPTIONS.dispatcherUnknownCommand().createWithContext(parseresults.getReader());
+             });
+         } catch (CommandSyntaxException commandsyntaxexception) {
+-            commandlistenerwrapper.sendFailure(ComponentUtils.fromMessage(commandsyntaxexception.getRawMessage()));
++            // Paper start - Add UnknownCommandEvent
++            final net.kyori.adventure.text.TextComponent.Builder builder = net.kyori.adventure.text.Component.text();
++            if ((parseresults.getContext().getNodes().isEmpty() || !this.vanillaCommandNodes.contains(parseresults.getContext().getNodes().get(0).getNode()))) {
++                if (!org.spigotmc.SpigotConfig.unknownCommandMessage.isEmpty()) {
++                    builder.append(net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(org.spigotmc.SpigotConfig.unknownCommandMessage));
++                }
++            } else {
++                // commandlistenerwrapper.sendFailure(ComponentUtils.fromMessage(commandsyntaxexception.getRawMessage()));
++                builder.color(net.kyori.adventure.text.format.NamedTextColor.RED).append(io.papermc.paper.brigadier.PaperBrigadier.componentFromMessage(commandsyntaxexception.getRawMessage()));
++                // Paper end - Add UnknownCommandEvent
+             if (commandsyntaxexception.getInput() != null && commandsyntaxexception.getCursor() >= 0) {
+                 int i = Math.min(commandsyntaxexception.getInput().length(), commandsyntaxexception.getCursor());
+                 MutableComponent ichatmutablecomponent = Component.empty().withStyle(ChatFormatting.GRAY).withStyle((chatmodifier) -> {
+@@ -0,0 +0,0 @@ public class Commands {
+                 }
+ 
+                 ichatmutablecomponent.append((Component) Component.translatable("command.context.here").withStyle(ChatFormatting.RED, ChatFormatting.ITALIC));
+-                commandlistenerwrapper.sendFailure(ichatmutablecomponent);
++                // Paper start - Add UnknownCommandEvent
++                // commandlistenerwrapper.sendFailure(ichatmutablecomponent);
++                builder
++                    .append(net.kyori.adventure.text.Component.newline())
++                    .append(io.papermc.paper.adventure.PaperAdventure.asAdventure(ichatmutablecomponent));
++            }
++            }
++            org.bukkit.event.command.UnknownCommandEvent event = new org.bukkit.event.command.UnknownCommandEvent(commandlistenerwrapper.getBukkitSender(), s, org.spigotmc.SpigotConfig.unknownCommandMessage.isEmpty() ? null : builder.build());
++            org.bukkit.Bukkit.getServer().getPluginManager().callEvent(event);
++            if (event.message() != null) {
++                commandlistenerwrapper.sendFailure(io.papermc.paper.adventure.PaperAdventure.asVanilla(event.message()), false);
++                // Paper end - Add UnknownCommandEvent
+             }
+ 
+             return null;
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+                     }
+                     node = clone;
+                 }
++                dispatcher.vanillaCommandNodes.add(node); // Paper
+ 
+                 dispatcher.getDispatcher().getRoot().addChild(node);
+             } else {
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+ 
+         // Spigot start
+         if (!org.spigotmc.SpigotConfig.unknownCommandMessage.isEmpty()) {
+-            sender.sendMessage(org.spigotmc.SpigotConfig.unknownCommandMessage);
++            // Paper start
++            org.bukkit.event.command.UnknownCommandEvent event = new org.bukkit.event.command.UnknownCommandEvent(sender, commandLine, net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(org.spigotmc.SpigotConfig.unknownCommandMessage));
++            this.getPluginManager().callEvent(event);
++            if (event.message() != null) {
++                sender.sendMessage(event.message());
++            }
++            // Paper end
+         }
+         // Spigot end
+ 

patches/server/Add-World-Util-Methods.patch

@@ -0,0 +1,34 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 18 Mar 2016 20:16:03 -0400
+Subject: [PATCH] Add World Util Methods
+
+Methods that can be used for other patches to help improve logic.
+
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+         return chunk == null ? null : chunk.getFluidState(blockposition);
+     }
+ 
++    public final boolean isLoadedAndInBounds(BlockPos blockposition) { // Paper - final for inline
++        return getWorldBorder().isWithinBounds(blockposition) && getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null;
++    }
++
++    public @Nullable LevelChunk getChunkIfLoaded(int x, int z) { // Overridden in WorldServer for ABI compat which has final
++        return ((ServerLevel) this).getChunkSource().getChunkAtIfLoadedImmediately(x, z);
++    }
++    public final @Nullable LevelChunk getChunkIfLoaded(BlockPos blockposition) {
++        return ((ServerLevel) this).getChunkSource().getChunkAtIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
++    }
++
++    //  reduces need to do isLoaded before getType
++    public final @Nullable BlockState getBlockStateIfLoadedAndInBounds(BlockPos blockposition) {
++        return getWorldBorder().isWithinBounds(blockposition) ? getBlockStateIfLoaded(blockposition) : null;
++    }
++
+     @Override
+     public final ChunkAccess getChunk(int chunkX, int chunkZ, ChunkStatus leastStatus, boolean create) { // Paper - final for inline
+         // Paper end

patches/server/Add-ability-to-configure-frosted_ice-properties.patch

@@ -0,0 +1,32 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <rileysebastianpark@gmail.com>
+Date: Thu, 21 Apr 2016 23:51:55 -0700
+Subject: [PATCH] Add ability to configure frosted_ice properties
+
+
+diff --git a/src/main/java/net/minecraft/world/level/block/FrostedIceBlock.java b/src/main/java/net/minecraft/world/level/block/FrostedIceBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/FrostedIceBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/FrostedIceBlock.java
+@@ -0,0 +0,0 @@ public class FrostedIceBlock extends IceBlock {
+ 
+     @Override
+     protected void tick(BlockState state, ServerLevel world, BlockPos pos, RandomSource random) {
++        if (!world.paperConfig().environment.frostedIce.enabled) return; // Paper - Frosted ice options
+         if ((random.nextInt(3) == 0 || this.fewerNeigboursThan(world, pos, 4))
+             && world.getMaxLocalRawBrightness(pos) > 11 - state.getValue(AGE) - state.getLightBlock(world, pos)
+             && this.slightlyMelt(state, world, pos)) {
+@@ -0,0 +0,0 @@ public class FrostedIceBlock extends IceBlock {
+                 mutableBlockPos.setWithOffset(pos, direction);
+                 BlockState blockState = world.getBlockState(mutableBlockPos);
+                 if (blockState.is(this) && !this.slightlyMelt(blockState, world, mutableBlockPos)) {
+-                    world.scheduleTick(mutableBlockPos, this, Mth.nextInt(random, 20, 40));
++                    world.scheduleTick(mutableBlockPos, this, Mth.nextInt(random, world.paperConfig().environment.frostedIce.delay.min, world.paperConfig().environment.frostedIce.delay.max)); // Paper - Frosted ice options
+                 }
+             }
+         } else {
+-            world.scheduleTick(pos, this, Mth.nextInt(random, 20, 40));
++            world.scheduleTick(pos, this, Mth.nextInt(random, world.paperConfig().environment.frostedIce.delay.min, world.paperConfig().environment.frostedIce.delay.max)); // Paper - Frosted ice options
+         }
+     }
+ 

patches/server/Add-configurable-portal-search-radius.patch

@@ -0,0 +1,38 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Joseph Hirschfeld <joe@ibj.io>
+Date: Thu, 3 Mar 2016 02:46:17 -0600
+Subject: [PATCH] Add configurable portal search radius
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+                 double d0 = DimensionType.getTeleportationScale(this.level().dimensionType(), destination.dimensionType());
+                 BlockPos blockposition = worldborder.clampToBounds(this.getX() * d0, this.getY(), this.getZ() * d0);
+                 // CraftBukkit start
+-                CraftPortalEvent event = this.callPortalEvent(this, destination, new Vec3(blockposition.getX(), blockposition.getY(), blockposition.getZ()), PlayerTeleportEvent.TeleportCause.NETHER_PORTAL, flag2 ? 16 : 128, 16);
++                // Paper start - Configurable portal search radius
++                int portalSearchRadius = destination.paperConfig().environment.portalSearchRadius;
++                if (level.paperConfig().environment.portalSearchVanillaDimensionScaling && flag2) { // == THE_NETHER
++                    portalSearchRadius = (int) (portalSearchRadius / destination.dimensionType().coordinateScale());
++                }
++                // Paper end - Configurable portal search radius
++                CraftPortalEvent event = this.callPortalEvent(this, destination, new Vec3(blockposition.getX(), blockposition.getY(), blockposition.getZ()), PlayerTeleportEvent.TeleportCause.NETHER_PORTAL, portalSearchRadius, destination.paperConfig().environment.portalCreateRadius); // Paper start - configurable portal radius
+                 if (event == null) {
+                     return null;
+                 }
+diff --git a/src/main/java/net/minecraft/world/level/portal/PortalForcer.java b/src/main/java/net/minecraft/world/level/portal/PortalForcer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/portal/PortalForcer.java
++++ b/src/main/java/net/minecraft/world/level/portal/PortalForcer.java
+@@ -0,0 +0,0 @@ public class PortalForcer {
+ 
+     public Optional<BlockUtil.FoundRectangle> findPortalAround(BlockPos pos, boolean destIsNether, WorldBorder worldBorder) {
+         // CraftBukkit start
+-        return this.findPortalAround(pos, worldBorder, destIsNether ? 16 : 128); // Search Radius
++        return this.findPortalAround(pos, worldBorder, destIsNether ? level.paperConfig().environment.portalCreateRadius : level.paperConfig().environment.portalSearchRadius); // Search Radius // Paper - Configurable portal search radius
+     }
+ 
+     public Optional<BlockUtil.FoundRectangle> findPortalAround(BlockPos blockposition, WorldBorder worldborder, int i) {

patches/server/Add-configuration-option-to-prevent-player-names-fro.patch

@@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <rileysebastianpark@gmail.com>
+Date: Fri, 9 Jun 2017 07:24:34 -0700
+Subject: [PATCH] Add configuration option to prevent player names from being
+ suggested
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+         commandMap.registerServerAliases();
+         return true;
+     }
++
++    @Override
++    public boolean suggestPlayerNamesWhenNullTabCompletions() {
++        return io.papermc.paper.configuration.GlobalConfiguration.get().commands.suggestPlayerNamesWhenNullTabCompletions;
++    }
+     // Paper end
+ }

patches/server/Add-exception-reporting-event.patch

@@ -0,0 +1,207 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Joseph Hirschfeld <joe@ibj.io>
+Date: Thu, 3 Mar 2016 03:15:41 -0600
+Subject: [PATCH] Add exception reporting event
+
+
+diff --git a/src/main/java/com/destroystokyo/paper/ServerSchedulerReportingWrapper.java b/src/main/java/com/destroystokyo/paper/ServerSchedulerReportingWrapper.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/ServerSchedulerReportingWrapper.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper;
++
++import com.google.common.base.Preconditions;
++import org.bukkit.craftbukkit.scheduler.CraftTask;
++import com.destroystokyo.paper.event.server.ServerExceptionEvent;
++import com.destroystokyo.paper.exception.ServerSchedulerException;
++
++/**
++ * Reporting wrapper to catch exceptions not natively
++ */
++public class ServerSchedulerReportingWrapper implements Runnable {
++
++    private final CraftTask internalTask;
++
++    public ServerSchedulerReportingWrapper(CraftTask internalTask) {
++        this.internalTask = Preconditions.checkNotNull(internalTask, "internalTask");
++    }
++
++    @Override
++    public void run() {
++        try {
++            internalTask.run();
++        } catch (RuntimeException e) {
++            internalTask.getOwner().getServer().getPluginManager().callEvent(
++                    new ServerExceptionEvent(new ServerSchedulerException(e, internalTask))
++            );
++            throw e;
++        } catch (Throwable t) {
++            internalTask.getOwner().getServer().getPluginManager().callEvent(
++                    new ServerExceptionEvent(new ServerSchedulerException(t, internalTask))
++            ); //Do not rethrow, since it is not permitted with Runnable#run
++        }
++    }
++
++    public CraftTask getInternalTask() {
++        return internalTask;
++    }
++}
+diff --git a/src/main/java/net/minecraft/server/players/OldUsersConverter.java b/src/main/java/net/minecraft/server/players/OldUsersConverter.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/OldUsersConverter.java
++++ b/src/main/java/net/minecraft/server/players/OldUsersConverter.java
+@@ -0,0 +0,0 @@ public class OldUsersConverter {
+                         try {
+                             root = NbtIo.readCompressed(new java.io.FileInputStream(file5), NbtAccounter.unlimitedHeap());
+                         } catch (Exception exception) {
+-                            io.papermc.paper.util.TraceUtil.printStackTrace(exception); // Paper
++                            // Paper start
++                            io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(exception);
++                            exception.printStackTrace();
++                            com.destroystokyo.paper.exception.ServerInternalException.reportInternalException(exception);
++                            // Paper end
+                         }
+ 
+                         if (root != null) {
+@@ -0,0 +0,0 @@ public class OldUsersConverter {
+                             try {
+                                 NbtIo.writeCompressed(root, new java.io.FileOutputStream(file2));
+                             } catch (Exception exception) {
+-                                io.papermc.paper.util.TraceUtil.printStackTrace(exception); // Paper
++                                // Paper start
++                                io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(exception);
++                                exception.printStackTrace();
++                                com.destroystokyo.paper.exception.ServerInternalException.reportInternalException(exception);
++                                // Paper end
+                             }
+                        }
+                         // CraftBukkit end
+diff --git a/src/main/java/net/minecraft/world/entity/ai/village/VillageSiege.java b/src/main/java/net/minecraft/world/entity/ai/village/VillageSiege.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/village/VillageSiege.java
++++ b/src/main/java/net/minecraft/world/entity/ai/village/VillageSiege.java
+@@ -0,0 +0,0 @@ public class VillageSiege implements CustomSpawner {
+                 entityzombie.finalizeSpawn(world, world.getCurrentDifficultyAt(entityzombie.blockPosition()), MobSpawnType.EVENT, (SpawnGroupData) null);
+             } catch (Exception exception) {
+                 VillageSiege.LOGGER.warn("Failed to create zombie for village siege at {}", vec3d, exception);
++                com.destroystokyo.paper.exception.ServerInternalException.reportInternalException(exception); // Paper - ServerExceptionEvent
+                 return;
+             }
+ 
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+             // Paper start - Prevent block entity and entity crashes
+             final String msg = String.format("Entity threw exception at %s:%s,%s,%s", entity.level().getWorld().getName(), entity.getX(), entity.getY(), entity.getZ());
+             MinecraftServer.LOGGER.error(msg, throwable);
++            getCraftServer().getPluginManager().callEvent(new com.destroystokyo.paper.event.server.ServerExceptionEvent(new com.destroystokyo.paper.exception.ServerInternalException(msg, throwable))); // Paper - ServerExceptionEvent
+             entity.discard(org.bukkit.event.entity.EntityRemoveEvent.Cause.DISCARD);
+             // Paper end - Prevent block entity and entity crashes
+         }
+diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
++++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+             NaturalSpawner.LOGGER.warn("Can't spawn entity of type: {}", BuiltInRegistries.ENTITY_TYPE.getKey(type));
+         } catch (Exception exception) {
+             NaturalSpawner.LOGGER.warn("Failed to create mob", exception);
++            com.destroystokyo.paper.exception.ServerInternalException.reportInternalException(exception); // Paper - ServerExceptionEvent
+         }
+ 
+         return null;
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+                                     entity = biomesettingsmobs_c.type.create(world.getLevel());
+                                 } catch (Exception exception) {
+                                     NaturalSpawner.LOGGER.warn("Failed to create mob", exception);
++                                    com.destroystokyo.paper.exception.ServerInternalException.reportInternalException(exception); // Paper - ServerExceptionEvent
+                                     continue;
+                                 }
+ 
+diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
++++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+@@ -0,0 +0,0 @@
+ package net.minecraft.world.level.chunk;
+ 
+ import com.google.common.collect.ImmutableList;
++import com.destroystokyo.paper.exception.ServerInternalException;
+ import com.google.common.collect.Maps;
+ import com.google.common.collect.UnmodifiableIterator;
+ import com.mojang.logging.LogUtils;
+@@ -0,0 +0,0 @@ public class LevelChunk extends ChunkAccess {
+ 
+             // CraftBukkit start
+         } else {
+-            System.out.println("Attempted to place a tile entity (" + blockEntity + ") at " + blockEntity.getBlockPos().getX() + "," + blockEntity.getBlockPos().getY() + "," + blockEntity.getBlockPos().getZ()
+-                + " (" + this.getBlockState(blockposition) + ") where there was no entity tile!");
+-            System.out.println("Chunk coordinates: " + (this.chunkPos.x * 16) + "," + (this.chunkPos.z * 16));
+-            new Exception().printStackTrace();
++            // Paper start - ServerExceptionEvent
++            ServerInternalException e = new ServerInternalException(
++                "Attempted to place a tile entity (" + blockEntity + ") at " + blockEntity.getBlockPos().getX() + ","
++                    + blockEntity.getBlockPos().getY() + "," + blockEntity.getBlockPos().getZ()
++                    + " (" + getBlockState(blockposition) + ") where there was no entity tile!\n" +
++                    "Chunk coordinates: " + (this.chunkPos.x * 16) + "," + (this.chunkPos.z * 16) +
++                    "\nWorld: " + level.getLevel().dimension().location());
++            e.printStackTrace();
++            ServerInternalException.reportInternalException(e);
++            // Paper end - ServerExceptionEvent
+             // CraftBukkit end
+         }
+     }
+@@ -0,0 +0,0 @@ public class LevelChunk extends ChunkAccess {
+                         // Paper start - Prevent block entity and entity crashes
+                         final String msg = String.format("BlockEntity threw exception at %s:%s,%s,%s", LevelChunk.this.getLevel().getWorld().getName(), this.getPos().getX(), this.getPos().getY(), this.getPos().getZ());
+                         net.minecraft.server.MinecraftServer.LOGGER.error(msg, throwable);
++                        net.minecraft.world.level.chunk.LevelChunk.this.level.getCraftServer().getPluginManager().callEvent(new com.destroystokyo.paper.event.server.ServerExceptionEvent(new ServerInternalException(msg, throwable))); // Paper - ServerExceptionEvent
+                         LevelChunk.this.removeBlockEntity(this.getPos());
+                         // Paper end - Prevent block entity and entity crashes
+                         // Spigot start
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
++++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
+                     return true;
+                 }
+             } catch (IOException ioexception) {
++                com.destroystokyo.paper.exception.ServerInternalException.reportInternalException(ioexception); // Paper - ServerExceptionEvent
+                 return false;
+             }
+         }
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
+             ((java.nio.Buffer) buf).position(5); // CraftBukkit - decompile error
+             filechannel.write(buf);
+         } catch (Throwable throwable) {
++            com.destroystokyo.paper.exception.ServerInternalException.reportInternalException(throwable); // Paper - ServerExceptionEvent
+             if (filechannel != null) {
+                 try {
+                     filechannel.close();
+diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
++++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
+@@ -0,0 +0,0 @@ public class CraftScheduler implements BukkitScheduler {
+                             msg,
+                             throwable);
+                     }
++                    org.bukkit.Bukkit.getServer().getPluginManager().callEvent(
++                        new com.destroystokyo.paper.event.server.ServerExceptionEvent(new com.destroystokyo.paper.exception.ServerSchedulerException(msg, throwable, task)));
+                     // Paper end
+                 } finally {
+                     this.currentTask = null;
+@@ -0,0 +0,0 @@ public class CraftScheduler implements BukkitScheduler {
+                 this.parsePending();
+             } else {
+                 this.debugTail = this.debugTail.setNext(new CraftAsyncDebugger(currentTick + CraftScheduler.RECENT_TICKS, task.getOwner(), task.getTaskClass()));
+-                this.executor.execute(task);
++                this.executor.execute(new com.destroystokyo.paper.ServerSchedulerReportingWrapper(task)); // Paper
+                 // We don't need to parse pending
+                 // (async tasks must live with race-conditions if they attempt to cancel between these few lines of code)
+             }

patches/server/Add-handshake-event-to-allow-plugins-to-handle-clien.patch

@@ -0,0 +1,56 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <rileysebastianpark@gmail.com>
+Date: Wed, 13 Apr 2016 20:21:38 -0700
+Subject: [PATCH] Add handshake event to allow plugins to handle client
+ handshaking logic themselves
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
+             this.connection.disconnect(ichatmutablecomponent);
+         } else {
+             this.connection.setupInboundProtocol(LoginProtocols.SERVERBOUND, new ServerLoginPacketListenerImpl(this.server, this.connection, transfer));
++            // Paper start - PlayerHandshakeEvent
++            boolean proxyLogicEnabled = org.spigotmc.SpigotConfig.bungee;
++            boolean handledByEvent = false;
++            // Try and handle the handshake through the event
++            if (com.destroystokyo.paper.event.player.PlayerHandshakeEvent.getHandlerList().getRegisteredListeners().length != 0) { // Hello? Can you hear me?
++                java.net.SocketAddress socketAddress = this.connection.address;
++                String hostnameOfRemote = socketAddress instanceof java.net.InetSocketAddress ? ((java.net.InetSocketAddress) socketAddress).getHostString() : InetAddress.getLoopbackAddress().getHostAddress();
++                com.destroystokyo.paper.event.player.PlayerHandshakeEvent event = new com.destroystokyo.paper.event.player.PlayerHandshakeEvent(packet.hostName(), hostnameOfRemote, !proxyLogicEnabled);
++                if (event.callEvent()) {
++                    // If we've failed somehow, let the client know so and go no further.
++                    if (event.isFailed()) {
++                        Component component = io.papermc.paper.adventure.PaperAdventure.asVanilla(event.failMessage());
++                        this.connection.send(new ClientboundLoginDisconnectPacket(component));
++                        this.connection.disconnect(component);
++                        return;
++                    }
++
++                    if (event.getServerHostname() != null) {
++                        // change hostname
++                        packet = new ClientIntentionPacket(
++                            packet.protocolVersion(),
++                            event.getServerHostname(),
++                            packet.port(),
++                            packet.intention()
++                        );
++                    }
++                    if (event.getSocketAddressHostname() != null) this.connection.address = new java.net.InetSocketAddress(event.getSocketAddressHostname(), socketAddress instanceof java.net.InetSocketAddress ? ((java.net.InetSocketAddress) socketAddress).getPort() : 0);
++                    this.connection.spoofedUUID = event.getUniqueId();
++                    this.connection.spoofedProfile = gson.fromJson(event.getPropertiesJson(), com.mojang.authlib.properties.Property[].class);
++                    handledByEvent = true; // Hooray, we did it!
++                }
++            }
++            // Paper end
+             // Spigot Start
+             String[] split = packet.hostName().split("\00");
+-            if (org.spigotmc.SpigotConfig.bungee) {
++            if (!handledByEvent && proxyLogicEnabled) { // Paper
++                // if (org.spigotmc.SpigotConfig.bungee) { // Paper - comment out, we check above!
+                 if ( ( split.length == 3 || split.length == 4 ) && ( ServerHandshakePacketListenerImpl.HOST_PATTERN.matcher( split[1] ).matches() ) ) {
+                     this.connection.hostname = split[0];
+                     this.connection.address = new java.net.InetSocketAddress(split[1], ((java.net.InetSocketAddress) this.connection.getRemoteAddress()).getPort());

patches/server/Add-methods-for-working-with-arrows-stuck-in-living-.patch

@@ -0,0 +1,60 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: mrapple <tony@oc.tc>
+Date: Sun, 25 Nov 2012 13:43:39 -0600
+Subject: [PATCH] Add methods for working with arrows stuck in living entities
+
+Upstream added methods for this, original methods are now
+deprecated
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+@@ -0,0 +0,0 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
+     }
+ 
+     @Override
+-    public void setArrowsInBody(int count) {
++    public void setArrowsInBody(final int count, final boolean fireEvent) { // Paper
+         Preconditions.checkArgument(count >= 0, "New arrow amount must be >= 0");
++        if (!fireEvent) { // Paper
+         this.getHandle().getEntityData().set(net.minecraft.world.entity.LivingEntity.DATA_ARROW_COUNT_ID, count);
++        // Paper start
++        } else {
++            this.getHandle().setArrowCount(count);
++        }
++        // Paper end
++    }
++
++    // Paper start - Add methods for working with arrows stuck in living entities
++    @Override
++    public void setNextArrowRemoval(final int ticks) {
++        Preconditions.checkArgument(ticks >= 0, "New amount of ticks before next arrow removal must be >= 0");
++        this.getHandle().removeArrowTime = ticks;
++    }
++
++    @Override
++    public int getNextArrowRemoval() {
++        return this.getHandle().removeArrowTime;
+     }
++    // Paper end - Add methods for working with arrows stuck in living entities
+ 
+     @Override
+     public void damage(double amount) {
+@@ -0,0 +0,0 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
+         this.getHandle().persistentInvisibility = invisible;
+         this.getHandle().setSharedFlag(5, invisible);
+     }
++
++    // Paper start
++    @Override
++    public int getArrowsStuck() {
++        return this.getHandle().getArrowCount();
++    }
++
++    @Override
++    public void setArrowsStuck(final int arrows) {
++        this.getHandle().setArrowCount(arrows);
++    }
++    // Paper end
+ }

patches/server/Add-option-to-make-parrots-stay-on-shoulders-despite.patch

@@ -0,0 +1,45 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Tue, 16 May 2017 21:29:08 -0500
+Subject: [PATCH] Add option to make parrots stay on shoulders despite movement
+
+Makes parrots not fall off whenever the player changes height, or touches water, or gets hit by a passing leaf.
+Instead, switches the behavior so that players have to sneak to make the birds leave.
+
+I suspect Mojang may switch to this behavior before full release.
+
+To be converted into a Paper-API event at some point in the future?
+
+== AT ==
+public net.minecraft.world.entity.player.Player removeEntitiesOnShoulder()V
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+         switch (packet.getAction()) {
+             case PRESS_SHIFT_KEY:
+                 this.player.setShiftKeyDown(true);
++
++                // Paper start - Add option to make parrots stay
++                if (this.player.level().paperConfig().entities.behavior.parrotsAreUnaffectedByPlayerMovement) {
++                    this.player.removeEntitiesOnShoulder();
++                }
++                // Paper end - Add option to make parrots stay
++
+                 break;
+             case RELEASE_SHIFT_KEY:
+                 this.player.setShiftKeyDown(false);
+diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/player/Player.java
++++ b/src/main/java/net/minecraft/world/entity/player/Player.java
+@@ -0,0 +0,0 @@ public abstract class Player extends LivingEntity {
+         this.playShoulderEntityAmbientSound(this.getShoulderEntityLeft());
+         this.playShoulderEntityAmbientSound(this.getShoulderEntityRight());
+         if (!this.level().isClientSide && (this.fallDistance > 0.5F || this.isInWater()) || this.abilities.flying || this.isSleeping() || this.isInPowderSnow) {
++            if (!this.level().paperConfig().entities.behavior.parrotsAreUnaffectedByPlayerMovement) // Paper - Add option to make parrots stay
+             this.removeEntitiesOnShoulder();
+         }
+ 

patches/server/Add-server-name-parameter.patch

@@ -0,0 +1,25 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Martin Panzer <postremus1996@googlemail.com>
+Date: Sat, 28 May 2016 16:54:03 +0200
+Subject: [PATCH] Add server-name parameter
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/Main.java
++++ b/src/main/java/org/bukkit/craftbukkit/Main.java
+@@ -0,0 +0,0 @@ public class Main {
+                         .defaultsTo(new File[] {})
+                         .describedAs("Jar file");
+                 // Paper end
++
++                // Paper start
++                acceptsAll(asList("server-name"), "Name of the server")
++                        .withRequiredArg()
++                        .ofType(String.class)
++                        .defaultsTo("Unknown Server")
++                        .describedAs("Name");
++                // Paper end
+             }
+         };
+ 

patches/server/Add-setPlayerProfile-API-for-Skulls.patch

@@ -0,0 +1,104 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 19 Jan 2018 00:36:25 -0500
+Subject: [PATCH] Add setPlayerProfile API for Skulls
+
+This allows you to create already filled textures on Skulls to avoid texture lookups
+which commonly cause rate limit issues with Mojang API
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftSkull.java b/src/main/java/org/bukkit/craftbukkit/block/CraftSkull.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftSkull.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftSkull.java
+@@ -0,0 +0,0 @@ public class CraftSkull extends CraftBlockEntityState<SkullBlockEntity> implemen
+         }
+     }
+ 
++    // Paper start
+     @Override
++    public void setPlayerProfile(com.destroystokyo.paper.profile.PlayerProfile profile) {
++        Preconditions.checkNotNull(profile, "profile");
++        this.profile = com.destroystokyo.paper.profile.CraftPlayerProfile.asAuthlibCopy(profile);
++    }
++
++    @javax.annotation.Nullable
++    @Override
++    public com.destroystokyo.paper.profile.PlayerProfile getPlayerProfile() {
++        return profile != null ? com.destroystokyo.paper.profile.CraftPlayerProfile.asBukkitCopy(profile) : null;
++    }
++    // Paper end
++
++    @Override
++    @Deprecated // Paper
+     public PlayerProfile getOwnerProfile() {
+         if (!this.hasOwner()) {
+             return null;
+@@ -0,0 +0,0 @@ public class CraftSkull extends CraftBlockEntityState<SkullBlockEntity> implemen
+     }
+ 
+     @Override
++    @Deprecated // Paper
+     public void setOwnerProfile(PlayerProfile profile) {
+         if (profile == null) {
+             this.profile = null;
+         } else {
+-            this.profile = CraftPlayerProfile.validateSkullProfile(((CraftPlayerProfile) profile).buildGameProfile());
++            this.profile = CraftPlayerProfile.validateSkullProfile(((com.destroystokyo.paper.profile.SharedPlayerProfile) profile).buildGameProfile()); // Paper
+         }
+     }
+ 
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaSkull.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaSkull.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaSkull.java
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaSkull.java
+@@ -0,0 +0,0 @@ class CraftMetaSkull extends CraftMetaItem implements SkullMeta {
+         return this.hasOwner() ? this.profile.getName() : null;
+     }
+ 
++    // Paper start
++    @Override
++    public void setPlayerProfile(@org.jetbrains.annotations.Nullable com.destroystokyo.paper.profile.PlayerProfile profile) {
++        setProfile((profile == null) ? null : com.destroystokyo.paper.profile.CraftPlayerProfile.asAuthlibCopy(profile));
++    }
++
++    @org.jetbrains.annotations.Nullable
++    @Override
++    public com.destroystokyo.paper.profile.PlayerProfile getPlayerProfile() {
++        return profile != null ? com.destroystokyo.paper.profile.CraftPlayerProfile.asBukkitCopy(profile) : null;
++    }
++    // Paper end
++
+     @Override
+     public OfflinePlayer getOwningPlayer() {
+         if (this.hasOwner()) {
+@@ -0,0 +0,0 @@ class CraftMetaSkull extends CraftMetaItem implements SkullMeta {
+     }
+ 
+     @Override
++    @Deprecated // Paper
+     public PlayerProfile getOwnerProfile() {
+         if (!this.hasOwner()) {
+             return null;
+@@ -0,0 +0,0 @@ class CraftMetaSkull extends CraftMetaItem implements SkullMeta {
+     }
+ 
+     @Override
++    @Deprecated // Paper
+     public void setOwnerProfile(PlayerProfile profile) {
+         if (profile == null) {
+             this.setProfile(null);
+         } else {
+-            this.setProfile(CraftPlayerProfile.validateSkullProfile(((CraftPlayerProfile) profile).buildGameProfile()));
++            this.setProfile(CraftPlayerProfile.validateSkullProfile(((com.destroystokyo.paper.profile.SharedPlayerProfile) profile).buildGameProfile())); // Paper
+         }
+     }
+ 
+@@ -0,0 +0,0 @@ class CraftMetaSkull extends CraftMetaItem implements SkullMeta {
+     Builder<String, Object> serialize(Builder<String, Object> builder) {
+         super.serialize(builder);
+         if (this.profile != null) {
+-            return builder.put(CraftMetaSkull.SKULL_OWNER.BUKKIT, new CraftPlayerProfile(this.profile));
++            return builder.put(CraftMetaSkull.SKULL_OWNER.BUKKIT, new com.destroystokyo.paper.profile.CraftPlayerProfile(this.profile)); // Paper
+         }
+         NamespacedKey namespacedKeyNB = this.getNoteBlockSound();
+         if (namespacedKeyNB != null) {

patches/server/Add-setting-for-proxy-online-mode-status.patch

@@ -0,0 +1,74 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Gabriele C <sgdc3.mail@gmail.com>
+Date: Fri, 5 Aug 2016 01:03:08 +0200
+Subject: [PATCH] Add setting for proxy online mode status
+
+TODO: Add isProxyOnlineMode check to Metrics
+
+diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
++++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+@@ -0,0 +0,0 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
+     public boolean enforceSecureProfile() {
+         DedicatedServerProperties dedicatedserverproperties = this.getProperties();
+ 
+-        return dedicatedserverproperties.enforceSecureProfile && dedicatedserverproperties.onlineMode && this.services.canValidateProfileKeys();
++        // Paper start - Add setting for proxy online mode status
++        return dedicatedserverproperties.enforceSecureProfile
++            && io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode()
++            && this.services.canValidateProfileKeys();
++        // Paper end - Add setting for proxy online mode status
+     }
+ 
+     @Override
+diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/GameProfileCache.java
++++ b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+                 }
+             };
+ 
+-        if (!org.apache.commons.lang3.StringUtils.isBlank(name)) // Paper - Don't lookup a profile with a blank name
++        if (!org.apache.commons.lang3.StringUtils.isBlank(name) // Paper - Don't lookup a profile with a blank name
++                && io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode()) // Paper - Add setting for proxy online mode status
+             repository.findProfilesByNames(new String[]{name}, profilelookupcallback);
+             GameProfile gameprofile = (GameProfile) atomicreference.get();
+ 
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+     }
+ 
+     private static boolean usesAuthentication() {
+-        return GameProfileCache.usesAuthentication;
++        return io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode(); // Paper - Add setting for proxy online mode status
+     }
+ 
+     public void add(GameProfile profile) {
+diff --git a/src/main/java/net/minecraft/server/players/OldUsersConverter.java b/src/main/java/net/minecraft/server/players/OldUsersConverter.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/OldUsersConverter.java
++++ b/src/main/java/net/minecraft/server/players/OldUsersConverter.java
+@@ -0,0 +0,0 @@ public class OldUsersConverter {
+             return new String[i];
+         });
+ 
+-        if (server.usesAuthentication() || org.spigotmc.SpigotConfig.bungee) { // Spigot: bungee = online mode, for now.
++        if (server.usesAuthentication() ||
++            (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode())) { // Spigot: bungee = online mode, for now.  // Paper - Add setting for proxy online mode status
+             server.getProfileRepository().findProfilesByNames(astring, callback);
+         } else {
+             String[] astring1 = astring;
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+         if (result == null) {
+             GameProfile profile = null;
+             // Only fetch an online UUID in online mode
+-            if (this.getOnlineMode() || org.spigotmc.SpigotConfig.bungee) { // Spigot: bungee = online mode, for now.
++            if (this.getOnlineMode() || io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode()) { // Paper - Add setting for proxy online mode status
+                 // This is potentially blocking :(
+                 profile = this.console.getProfileCache().get(name).orElse(null);
+             }

patches/server/Add-source-to-PlayerExpChangeEvent.patch

@@ -0,0 +1,41 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: AlphaBlend <whizkid3000@hotmail.com>
+Date: Thu, 8 Sep 2016 08:48:33 -0700
+Subject: [PATCH] Add source to PlayerExpChangeEvent
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
++++ b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
+@@ -0,0 +0,0 @@ public class ExperienceOrb extends Entity {
+                 int i = this.repairPlayerItems(player, this.value);
+ 
+                 if (i > 0) {
+-                    player.giveExperiencePoints(CraftEventFactory.callPlayerExpChangeEvent(player, i).getAmount()); // CraftBukkit - this.value -> event.getAmount()
++                    player.giveExperiencePoints(CraftEventFactory.callPlayerExpChangeEvent(player, this).getAmount()); // CraftBukkit - this.value -> event.getAmount() // Paper - supply experience orb object
+                 }
+ 
+                 --this.count;
+diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
++++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+@@ -0,0 +0,0 @@ public class CraftEventFactory {
+         return event;
+     }
+ 
++    // Paper start - Add orb
++    public static PlayerExpChangeEvent callPlayerExpChangeEvent(net.minecraft.world.entity.player.Player entity, net.minecraft.world.entity.ExperienceOrb entityOrb) {
++        Player player = (Player) entity.getBukkitEntity();
++        ExperienceOrb source = (ExperienceOrb) entityOrb.getBukkitEntity();
++        int expAmount = source.getExperience();
++        PlayerExpChangeEvent event = new PlayerExpChangeEvent(player, source, expAmount);
++        Bukkit.getPluginManager().callEvent(event);
++        return event;
++    }
++    // Paper end
++
+     public static boolean handleBlockGrowEvent(Level world, BlockPos pos, net.minecraft.world.level.block.state.BlockState block) {
+         return CraftEventFactory.handleBlockGrowEvent(world, pos, block, 3);
+     }

patches/server/Add-velocity-warnings.patch

@@ -0,0 +1,85 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Joseph Hirschfeld <joe@ibj.io>
+Date: Thu, 3 Mar 2016 02:48:12 -0600
+Subject: [PATCH] Add velocity warnings
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+     public boolean ignoreVanillaPermissions = false;
+     private final List<CraftPlayer> playerView;
+     public int reloadCount;
++    public static Exception excessiveVelEx; // Paper - Velocity warnings
+ 
+     static {
+         ConfigurationSerialization.registerClass(CraftOfflinePlayer.class);
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+@@ -0,0 +0,0 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
+     public void setVelocity(Vector velocity) {
+         Preconditions.checkArgument(velocity != null, "velocity");
+         velocity.checkFinite();
++        // Paper start - Warn server owners when plugins try to set super high velocities
++        if (!(this instanceof org.bukkit.entity.Projectile || this instanceof org.bukkit.entity.Minecart) && isUnsafeVelocity(velocity)) {
++            CraftServer.excessiveVelEx = new Exception("Excessive velocity set detected: tried to set velocity of entity " + entity.getScoreboardName() + " id #" + getEntityId() + " to (" + velocity.getX() + "," + velocity.getY() + "," + velocity.getZ() + ").");
++        }
++        // Paper end
+         this.entity.setDeltaMovement(CraftVector.toNMS(velocity));
+         this.entity.hurtMarked = true;
+     }
+ 
++    // Paper start
++    /**
++     * Checks if the given velocity is not necessarily safe in all situations.
++     * This function returning true does not mean the velocity is dangerous or to be avoided, only that it may be
++     * a detriment to performance on the server.
++     *
++     * It is not to be used as a hard rule of any sort.
++     * Paper only uses it to warn server owners in watchdog crashes.
++     *
++     * @param vel incoming velocity to check
++     * @return if the velocity has the potential to be a performance detriment
++     */
++    private static boolean isUnsafeVelocity(Vector vel) {
++        final double x = vel.getX();
++        final double y = vel.getY();
++        final double z = vel.getZ();
++
++        if (x > 4 || x < -4 || y > 4 || y < -4 || z > 4 || z < -4) {
++            return true;
++        }
++
++        return false;
++    }
++    // Paper end
++
+     @Override
+     public double getHeight() {
+         return this.getHandle().getBbHeight();
+diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/spigotmc/WatchdogThread.java
++++ b/src/main/java/org/spigotmc/WatchdogThread.java
+@@ -0,0 +0,0 @@ public class WatchdogThread extends Thread
+                     log.log( Level.SEVERE, "near " + net.minecraft.world.level.Level.lastPhysicsProblem );
+                 }
+                 //
++                // Paper start - Warn in watchdog if an excessive velocity was ever set
++                if (org.bukkit.craftbukkit.CraftServer.excessiveVelEx != null) {
++                    log.log(Level.SEVERE, "------------------------------");
++                    log.log(Level.SEVERE, "During the run of the server, a plugin set an excessive velocity on an entity");
++                    log.log(Level.SEVERE, "This may be the cause of the issue, or it may be entirely unrelated");
++                    log.log(Level.SEVERE, org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getMessage());
++                    for (StackTraceElement stack : org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getStackTrace()) {
++                        log.log( Level.SEVERE, "\t\t" + stack );
++                    }
++                }
++                // Paper end
+                 log.log( Level.SEVERE, "------------------------------" );
+                 log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Paper!):" ); // Paper
+                 WatchdogThread.dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( MinecraftServer.getServer().serverThread.getId(), Integer.MAX_VALUE ), log );

patches/server/All-chunks-are-slime-spawn-chunks-toggle.patch

@@ -0,0 +1,32 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: vemacs <d@nkmem.es>
+Date: Thu, 3 Mar 2016 01:19:22 -0600
+Subject: [PATCH] All chunks are slime spawn chunks toggle
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/monster/Slime.java b/src/main/java/net/minecraft/world/entity/monster/Slime.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/monster/Slime.java
++++ b/src/main/java/net/minecraft/world/entity/monster/Slime.java
+@@ -0,0 +0,0 @@ public class Slime extends Mob implements Enemy {
+                 }
+ 
+                 ChunkPos chunkcoordintpair = new ChunkPos(pos);
+-                boolean flag = WorldgenRandom.seedSlimeChunk(chunkcoordintpair.x, chunkcoordintpair.z, ((WorldGenLevel) world).getSeed(), world.getMinecraftWorld().spigotConfig.slimeSeed).nextInt(10) == 0; // Spigot
++                boolean flag = world.getMinecraftWorld().paperConfig().entities.spawning.allChunksAreSlimeChunks || WorldgenRandom.seedSlimeChunk(chunkcoordintpair.x, chunkcoordintpair.z, ((WorldGenLevel) world).getSeed(), world.getMinecraftWorld().spigotConfig.slimeSeed).nextInt(10) == 0; // Spigot // Paper
+ 
+                 if (random.nextInt(10) == 0 && flag && pos.getY() < 40) {
+                     return checkMobSpawnRules(type, world, spawnReason, pos, random);
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+@@ -0,0 +0,0 @@ public class CraftChunk implements Chunk {
+     @Override
+     public boolean isSlimeChunk() {
+         // 987234911L is deterimined in EntitySlime when seeing if a slime can spawn in a chunk
+-        return WorldgenRandom.seedSlimeChunk(this.getX(), this.getZ(), this.getWorld().getSeed(), this.worldServer.spigotConfig.slimeSeed).nextInt(10) == 0;
++        return this.worldServer.paperConfig().entities.spawning.allChunksAreSlimeChunks || WorldgenRandom.seedSlimeChunk(this.getX(), this.getZ(), this.getWorld().getSeed(), worldServer.spigotConfig.slimeSeed).nextInt(10) == 0; // Paper
+     }
+ 
+     @Override

patches/server/Allow-Reloading-of-Command-Aliases.patch

@@ -0,0 +1,36 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: willies952002 <admin@domnian.com>
+Date: Mon, 28 Nov 2016 10:21:52 -0500
+Subject: [PATCH] Allow Reloading of Command Aliases
+
+Reload the aliases stored in commands.yml
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+         DefaultPermissions.registerCorePermissions();
+         CraftDefaultPermissions.registerCorePermissions();
+     }
++
++    @Override
++    public boolean reloadCommandAliases() {
++        Set<String> removals = getCommandAliases().keySet().stream()
++                .map(key -> key.toLowerCase(java.util.Locale.ENGLISH))
++                .collect(java.util.stream.Collectors.toSet());
++        getCommandMap().getKnownCommands().keySet().removeIf(removals::contains);
++        File file = getCommandsConfigFile();
++        try {
++            commandsConfiguration.load(file);
++        } catch (FileNotFoundException ex) {
++            return false;
++        } catch (IOException | org.bukkit.configuration.InvalidConfigurationException ex) {
++            Bukkit.getLogger().log(Level.SEVERE, "Cannot load " + file, ex);
++            return false;
++        }
++        commandMap.registerServerAliases();
++        return true;
++    }
+     // Paper end
+ }

patches/server/Allow-Reloading-of-Custom-Permissions.patch

@@ -0,0 +1,35 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: William <admin@domnian.com>
+Date: Fri, 18 Mar 2016 03:30:17 -0400
+Subject: [PATCH] Allow Reloading of Custom Permissions
+
+https://github.com/PaperMC/Paper/issues/49
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+         }
+         return this.adventure$audiences;
+     }
++
++    @Override
++    public void reloadPermissions() {
++        pluginManager.clearPermissions();
++        if (io.papermc.paper.configuration.GlobalConfiguration.get().misc.loadPermissionsYmlBeforePlugins) loadCustomPermissions();
++        for (Plugin plugin : pluginManager.getPlugins()) {
++            for (Permission perm : plugin.getDescription().getPermissions()) {
++                try {
++                    pluginManager.addPermission(perm);
++                } catch (IllegalArgumentException ex) {
++                    getLogger().log(Level.WARNING, "Plugin " + plugin.getDescription().getFullName() + " tried to register permission '" + perm.getName() + "' but it's already registered", ex);
++                }
++            }
++        }
++        if (!io.papermc.paper.configuration.GlobalConfiguration.get().misc.loadPermissionsYmlBeforePlugins) loadCustomPermissions();
++        DefaultPermissions.registerCorePermissions();
++        CraftDefaultPermissions.registerCorePermissions();
++    }
+     // Paper end
+ }

patches/server/Allow-specifying-a-custom-authentication-servers-dow.patch

@@ -0,0 +1,20 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <rileysebastianpark@gmail.com>
+Date: Thu, 17 Aug 2017 16:08:20 -0700
+Subject: [PATCH] Allow specifying a custom "authentication servers down" kick
+ message
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+                         ServerLoginPacketListenerImpl.LOGGER.warn("Authentication servers are down but will let them in anyway!");
+                         ServerLoginPacketListenerImpl.this.startClientVerification(ServerLoginPacketListenerImpl.this.createOfflineProfile(s1)); // Spigot
+                     } else {
+-                        ServerLoginPacketListenerImpl.this.disconnect(Component.translatable("multiplayer.disconnect.authservers_down"));
++                        ServerLoginPacketListenerImpl.this.disconnect(io.papermc.paper.adventure.PaperAdventure.asVanilla(io.papermc.paper.configuration.GlobalConfiguration.get().messages.kick.authenticationServersDown)); // Paper - Configurable kick message
+                         ServerLoginPacketListenerImpl.LOGGER.error("Couldn't verify username because servers are unavailable");
+                     }
+                     // CraftBukkit start - catch all exceptions

patches/server/Async-GameProfileCache-saving.patch

@@ -0,0 +1,86 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 16 May 2016 20:47:41 -0400
+Subject: [PATCH] Async GameProfileCache saving
+
+
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+         } catch (java.lang.InterruptedException ignored) {} // Paper
+         if (org.spigotmc.SpigotConfig.saveUserCacheOnStopOnly) {
+             MinecraftServer.LOGGER.info("Saving usercache.json");
+-            this.getProfileCache().save();
++            this.getProfileCache().save(false); // Paper - Perf: Async GameProfileCache saving
+         }
+         // Spigot end
+ 
+diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
++++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+@@ -0,0 +0,0 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
+         }
+ 
+         if (this.convertOldUsers()) {
+-            this.getProfileCache().save();
++            this.getProfileCache().save(false); // Paper - Perf: Async GameProfileCache saving
+         }
+ 
+         if (!OldUsersConverter.serverReadyAfterUserconversion(this)) {
+diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/GameProfileCache.java
++++ b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+         GameProfileCache.GameProfileInfo usercache_usercacheentry = new GameProfileCache.GameProfileInfo(profile, date);
+ 
+         this.safeAdd(usercache_usercacheentry);
+-        if( !org.spigotmc.SpigotConfig.saveUserCacheOnStopOnly ) this.save(); // Spigot - skip saving if disabled
++        if( !org.spigotmc.SpigotConfig.saveUserCacheOnStopOnly ) this.save(true); // Spigot - skip saving if disabled // Paper - Perf: Async GameProfileCache saving
+     }
+ 
+     private long getNextOperation() {
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+         }
+ 
+         if (flag && !org.spigotmc.SpigotConfig.saveUserCacheOnStopOnly) { // Spigot - skip saving if disabled
+-            this.save();
++            this.save(true); // Paper - Perf: Async GameProfileCache saving
+         }
+ 
+         return optional;
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+         return list;
+     }
+ 
+-    public void save() {
++    public void save(boolean asyncSave) { // Paper - Perf: Async GameProfileCache saving
+         JsonArray jsonarray = new JsonArray();
+         DateFormat dateformat = GameProfileCache.createDateFormat();
+ 
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+             jsonarray.add(GameProfileCache.writeGameProfile(usercache_usercacheentry, dateformat));
+         });
+         String s = this.gson.toJson(jsonarray);
++        Runnable save = () -> { // Paper - Perf: Async GameProfileCache saving
+ 
+         try {
+             BufferedWriter bufferedwriter = Files.newWriter(this.file, StandardCharsets.UTF_8);
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+         } catch (IOException ioexception) {
+             ;
+         }
++        // Paper start - Perf: Async GameProfileCache saving
++        };
++        if (asyncSave) {
++            io.papermc.paper.util.MCUtil.scheduleAsyncTask(save);
++        } else {
++            save.run();
++        }
++        // Paper end - Perf: Async GameProfileCache saving
+ 
+     }
+ 

patches/server/AsyncTabCompleteEvent.patch

@@ -0,0 +1,176 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
+Date: Sun, 26 Nov 2017 13:19:58 -0500
+Subject: [PATCH] AsyncTabCompleteEvent
+
+Let plugins be able to control tab completion of commands and chat async.
+
+This will be useful for frameworks like ACF so we can define async safe completion handlers,
+and avoid going to main for tab completions.
+
+Especially useful if you need to query a database in order to obtain the results for tab
+completion, such as offline players.
+
+Also adds isCommand and getLocation to the sync TabCompleteEvent
+
+Co-authored-by: Aikar <aikar@aikar.co>
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ 
+     }
+ 
++    // Paper start - AsyncTabCompleteEvent
++    private static final java.util.concurrent.ExecutorService TAB_COMPLETE_EXECUTOR = java.util.concurrent.Executors.newFixedThreadPool(4,
++        new com.google.common.util.concurrent.ThreadFactoryBuilder().setDaemon(true).setNameFormat("Async Tab Complete Thread - #%d").setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER)).build());
++    // Paper end - AsyncTabCompleteEvent
+     @Override
+     public void handleCustomCommandSuggestions(ServerboundCommandSuggestionPacket packet) {
+-        PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
++        // PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel()); // Paper - AsyncTabCompleteEvent; run this async
+         // CraftBukkit start
+         if (this.chatSpamTickCount.addAndGet(1) > 500 && !this.server.getPlayerList().isOp(this.player.getGameProfile())) {
+             this.disconnect(Component.translatable("disconnect.spam"));
+             return;
+         }
+         // CraftBukkit end
++        // Paper start - AsyncTabCompleteEvent
++        TAB_COMPLETE_EXECUTOR.execute(() -> this.handleCustomCommandSuggestions0(packet));
++    }
++
++    private void handleCustomCommandSuggestions0(final ServerboundCommandSuggestionPacket packet) {
+         StringReader stringreader = new StringReader(packet.getCommand());
+ 
+         if (stringreader.canRead() && stringreader.peek() == '/') {
+             stringreader.skip();
+         }
+ 
++        final com.destroystokyo.paper.event.server.AsyncTabCompleteEvent event = new com.destroystokyo.paper.event.server.AsyncTabCompleteEvent(this.getCraftPlayer(), packet.getCommand(), true, null);
++        event.callEvent();
++        final List<com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion> completions = event.isCancelled() ? com.google.common.collect.ImmutableList.of() : event.completions();
++        // If the event isn't handled, we can assume that we have no completions, and so we'll ask the server
++        if (!event.isHandled()) {
++            if (event.isCancelled()) {
++                return;
++            }
++
++            // This needs to be on main
++            this.server.scheduleOnMain(() -> this.sendServerSuggestions(packet, stringreader));
++        } else if (!completions.isEmpty()) {
++            final com.mojang.brigadier.suggestion.SuggestionsBuilder builder0 = new com.mojang.brigadier.suggestion.SuggestionsBuilder(packet.getCommand(), stringreader.getTotalLength());
++            final com.mojang.brigadier.suggestion.SuggestionsBuilder builder = builder0.createOffset(builder0.getInput().lastIndexOf(' ') + 1);
++            for (final com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion completion : completions) {
++                final Integer intSuggestion = com.google.common.primitives.Ints.tryParse(completion.suggestion());
++                if (intSuggestion != null) {
++                    builder.suggest(intSuggestion, PaperAdventure.asVanilla(completion.tooltip()));
++                } else {
++                    builder.suggest(completion.suggestion(), PaperAdventure.asVanilla(completion.tooltip()));
++                }
++            }
++            this.connection.send(new ClientboundCommandSuggestionsPacket(packet.getId(), builder.buildFuture().join()));
++        }
++    }
++
++    private void sendServerSuggestions(final ServerboundCommandSuggestionPacket packet, final StringReader stringreader) {
++        // Paper end - AsyncTabCompleteEvent
+         ParseResults<CommandSourceStack> parseresults = this.server.getCommands().getDispatcher().parse(stringreader, this.player.createCommandSourceStack());
+ 
+         this.server.getCommands().getDispatcher().getCompletionSuggestions(parseresults).thenAccept((suggestions) -> {
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+             offers = this.tabCompleteChat(player, message);
+         }
+ 
+-        TabCompleteEvent tabEvent = new TabCompleteEvent(player, message, offers);
++        TabCompleteEvent tabEvent = new TabCompleteEvent(player, message, offers, message.startsWith("/") || forceCommand, pos != null ? io.papermc.paper.util.MCUtil.toLocation(((CraftWorld) player.getWorld()).getHandle(), BlockPos.containing(pos)) : null); // Paper - AsyncTabCompleteEvent
+         this.getPluginManager().callEvent(tabEvent);
+ 
+         return tabEvent.isCancelled() ? Collections.EMPTY_LIST : tabEvent.getCompletions();
+diff --git a/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java b/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
++++ b/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
+@@ -0,0 +0,0 @@ public class ConsoleCommandCompleter implements Completer {
+     public void complete(LineReader reader, ParsedLine line, List<Candidate> candidates) {
+         final CraftServer server = this.server.server;
+         final String buffer = line.line();
++        // Async Tab Complete
++        final com.destroystokyo.paper.event.server.AsyncTabCompleteEvent event =
++            new com.destroystokyo.paper.event.server.AsyncTabCompleteEvent(server.getConsoleSender(), buffer, true, null);
++        event.callEvent();
++        final List<com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion> completions = event.isCancelled() ? com.google.common.collect.ImmutableList.of() : event.completions();
++
++        if (event.isCancelled() || event.isHandled()) {
++            // Still fire sync event with the provided completions, if someone is listening
++            if (!event.isCancelled() && TabCompleteEvent.getHandlerList().getRegisteredListeners().length > 0) {
++                List<com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion> finalCompletions = new java.util.ArrayList<>(completions);
++                Waitable<List<String>> syncCompletions = new Waitable<List<String>>() {
++                    @Override
++                    protected List<String> evaluate() {
++                        org.bukkit.event.server.TabCompleteEvent syncEvent = new org.bukkit.event.server.TabCompleteEvent(server.getConsoleSender(), buffer,
++                            finalCompletions.stream()
++                                .map(com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion::suggestion)
++                                .collect(java.util.stream.Collectors.toList()));
++                        return syncEvent.callEvent() ? syncEvent.getCompletions() : com.google.common.collect.ImmutableList.of();
++                    }
++                };
++                server.getServer().processQueue.add(syncCompletions);
++                try {
++                    final List<String> legacyCompletions = syncCompletions.get();
++                    completions.removeIf(it -> !legacyCompletions.contains(it.suggestion())); // remove any suggestions that were removed
++                    // add any new suggestions
++                    for (final String completion : legacyCompletions) {
++                        if (notNewSuggestion(completions, completion)) {
++                            continue;
++                        }
++                        completions.add(com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion.completion(completion));
++                    }
++                } catch (InterruptedException | ExecutionException e1) {
++                    e1.printStackTrace();
++                }
++            }
++
++            if (!completions.isEmpty()) {
++                for (final com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion completion : completions) {
++                    if (completion.suggestion().isEmpty()) {
++                        continue;
++                    }
++                    candidates.add(new Candidate(
++                        completion.suggestion(),
++                        completion.suggestion(),
++                        null,
++                        io.papermc.paper.adventure.PaperAdventure.PLAIN.serializeOr(completion.tooltip(), null),
++                        null,
++                        null,
++                        false
++                    ));
++                }
++            }
++            return;
++        }
++
+         // Paper end
+         Waitable<List<String>> waitable = new Waitable<List<String>>() {
+             @Override
+@@ -0,0 +0,0 @@ public class ConsoleCommandCompleter implements Completer {
+             Thread.currentThread().interrupt();
+         }
+     }
++
++    // Paper start
++    private boolean notNewSuggestion(final List<com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion> completions, final String completion) {
++        for (final com.destroystokyo.paper.event.server.AsyncTabCompleteEvent.Completion it : completions) {
++            if (it.suggestion().equals(completion)) {
++                return true;
++            }
++        }
++        return false;
++    }
++    // Paper end
+ }

patches/server/Avoid-blocking-on-Network-Manager-creation.patch

@@ -0,0 +1,45 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 16 May 2016 23:19:16 -0400
+Subject: [PATCH] Avoid blocking on Network Manager creation
+
+Per Paper issue 294
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
++++ b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+@@ -0,0 +0,0 @@ public class ServerConnectionListener {
+     public volatile boolean running;
+     private final List<ChannelFuture> channels = Collections.synchronizedList(Lists.newArrayList());
+     final List<Connection> connections = Collections.synchronizedList(Lists.newArrayList());
++    // Paper start - prevent blocking on adding a new connection while the server is ticking
++    private final java.util.Queue<Connection> pending = new java.util.concurrent.ConcurrentLinkedQueue<>();
++    private final void addPending() {
++        Connection connection;
++        while ((connection = pending.poll()) != null) {
++            connections.add(connection);
++        }
++    }
++    // Paper end - prevent blocking on adding a new connection while the server is ticking
+ 
+     public ServerConnectionListener(MinecraftServer server) {
+         this.server = server;
+@@ -0,0 +0,0 @@ public class ServerConnectionListener {
+                     int j = ServerConnectionListener.this.server.getRateLimitPacketsPerSecond();
+                     Connection object = j > 0 ? new RateKickingConnection(j) : new Connection(PacketFlow.SERVERBOUND); // CraftBukkit - decompile error
+ 
+-                    ServerConnectionListener.this.connections.add(object);
++                    //ServerConnectionListener.this.connections.add(object); // Paper
++                    pending.add(object); // Paper - prevent blocking on adding a new connection while the server is ticking
+                     ((Connection) object).configurePacketHandler(channelpipeline);
+                     ((Connection) object).setListenerForServerboundHandshake(new ServerHandshakePacketListenerImpl(ServerConnectionListener.this.server, (Connection) object));
+                 }
+@@ -0,0 +0,0 @@ public class ServerConnectionListener {
+ 
+         synchronized (this.connections) {
+             // Spigot Start
++            this.addPending(); // Paper - prevent blocking on adding a new connection while the server is ticking
+             // This prevents players from 'gaming' the server, and strategically relogging to increase their position in the tick order
+             if ( org.spigotmc.SpigotConfig.playerShuffle > 0 && MinecraftServer.currentTick % org.spigotmc.SpigotConfig.playerShuffle == 0 )
+             {

patches/server/Basic-PlayerProfile-API.patch

@@ -0,0 +1,759 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 15 Jan 2018 22:11:48 -0500
+Subject: [PATCH] Basic PlayerProfile API
+
+Establishes base extension of profile systems for future edits too
+
+== AT ==
+public org.bukkit.craftbukkit.profile.CraftProfileProperty
+public org.bukkit.craftbukkit.profile.CraftPlayerTextures
+public org.bukkit.craftbukkit.profile.CraftPlayerTextures copyFrom(Lorg/bukkit/profile/PlayerTextures;)V
+public org.bukkit.craftbukkit.profile.CraftPlayerTextures rebuildPropertyIfDirty()V
+public org.bukkit.craftbukkit.profile.CraftPlayerProfile toString(Lcom/mojang/authlib/properties/PropertyMap;)Ljava/lang/String;
+public org.bukkit.craftbukkit.profile.CraftPlayerProfile getProperty(Ljava/lang/String;)Lcom/mojang/authlib/properties/Property;
+public org.bukkit.craftbukkit.profile.CraftPlayerProfile setProperty(Ljava/lang/String;Lcom/mojang/authlib/properties/Property;)V
+
+diff --git a/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java b/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.profile;
++
++import com.mojang.authlib.yggdrasil.ProfileResult;
++import io.papermc.paper.configuration.GlobalConfiguration;
++import com.google.common.base.Charsets;
++import com.google.common.collect.Iterables;
++import com.mojang.authlib.GameProfile;
++import com.mojang.authlib.properties.Property;
++import com.mojang.authlib.properties.PropertyMap;
++import net.minecraft.Util;
++import net.minecraft.server.MinecraftServer;
++import net.minecraft.server.players.GameProfileCache;
++import org.apache.commons.lang3.StringUtils;
++import org.apache.commons.lang3.Validate;
++import org.bukkit.configuration.serialization.SerializableAs;
++import org.bukkit.craftbukkit.configuration.ConfigSerializationUtil;
++import org.bukkit.craftbukkit.entity.CraftPlayer;
++import org.bukkit.craftbukkit.profile.CraftPlayerTextures;
++import org.bukkit.craftbukkit.profile.CraftProfileProperty;
++import org.bukkit.profile.PlayerTextures;
++import org.jetbrains.annotations.NotNull;
++
++import javax.annotation.Nonnull;
++import javax.annotation.Nullable;
++import java.util.*;
++import java.util.concurrent.CompletableFuture;
++
++@SerializableAs("PlayerProfile")
++public class CraftPlayerProfile implements PlayerProfile, SharedPlayerProfile {
++
++    private GameProfile profile;
++    private final PropertySet properties = new PropertySet();
++
++    public CraftPlayerProfile(CraftPlayer player) {
++        this.profile = player.getHandle().getGameProfile();
++    }
++
++    public CraftPlayerProfile(UUID id, String name) {
++        this.profile = createAuthLibProfile(id, name);
++    }
++
++    public CraftPlayerProfile(GameProfile profile) {
++        Validate.notNull(profile, "GameProfile cannot be null!");
++        this.profile = profile;
++    }
++
++    @Override
++    public boolean hasProperty(String property) {
++        return profile.getProperties().containsKey(property);
++    }
++
++    @Override
++    public void setProperty(ProfileProperty property) {
++        String name = property.getName();
++        PropertyMap properties = profile.getProperties();
++        properties.removeAll(name);
++        properties.put(name, new Property(name, property.getValue(), property.getSignature()));
++    }
++
++    @Override
++    public CraftPlayerTextures getTextures() {
++        return new CraftPlayerTextures(this);
++    }
++
++    @Override
++    public void setTextures(@Nullable PlayerTextures textures) {
++        if (textures == null) {
++            this.removeProperty("textures");
++        } else {
++            CraftPlayerTextures craftPlayerTextures = new CraftPlayerTextures(this);
++            craftPlayerTextures.copyFrom(textures);
++            craftPlayerTextures.rebuildPropertyIfDirty();
++        }
++    }
++
++    public GameProfile getGameProfile() {
++        return profile;
++    }
++
++    @Nullable
++    @Override
++    public UUID getId() {
++        return profile.getId().equals(Util.NIL_UUID) ? null : profile.getId();
++    }
++
++    @Override
++    @Deprecated(forRemoval = true)
++    public UUID setId(@Nullable UUID uuid) {
++        final GameProfile previousProfile = this.profile;
++        final UUID previousId = this.getId();
++        this.profile = createAuthLibProfile(uuid, previousProfile.getName());
++        copyProfileProperties(previousProfile, this.profile);
++        return previousId;
++    }
++
++    @Override
++    public UUID getUniqueId() {
++        return getId();
++    }
++
++    @Nullable
++    @Override
++    public String getName() {
++        return profile.getName();
++    }
++
++    @Override
++    @Deprecated(forRemoval = true)
++    public String setName(@Nullable String name) {
++        GameProfile prev = this.profile;
++        this.profile = createAuthLibProfile(prev.getId(), name);
++        copyProfileProperties(prev, this.profile);
++        return prev.getName();
++    }
++
++    @Nonnull
++    @Override
++    public Set<ProfileProperty> getProperties() {
++        return properties;
++    }
++
++    @Override
++    public void setProperties(Collection<ProfileProperty> properties) {
++        properties.forEach(this::setProperty);
++    }
++
++    @Override
++    public void clearProperties() {
++        profile.getProperties().clear();
++    }
++
++    @Override
++    public boolean removeProperty(String property) {
++        return !profile.getProperties().removeAll(property).isEmpty();
++    }
++
++    @Nullable
++    @Override
++    public Property getProperty(String property) {
++        return Iterables.getFirst(this.profile.getProperties().get(property), null);
++    }
++
++    @Nullable
++    @Override
++    public void setProperty(@NotNull String propertyName, @Nullable Property property) {
++        PropertyMap properties = profile.getProperties();
++        properties.removeAll(propertyName);
++        if (property != null) {
++            properties.put(propertyName, property);
++        }
++    }
++
++    @Override
++    public @NotNull GameProfile buildGameProfile() {
++        GameProfile profile = new GameProfile(this.profile.getId(), this.profile.getName());
++        profile.getProperties().putAll(this.profile.getProperties());
++        return profile;
++    }
++
++    @Override
++    public CraftPlayerProfile clone() {
++        CraftPlayerProfile clone = new CraftPlayerProfile(this.getId(), this.getName());
++        clone.setProperties(getProperties());
++        return clone;
++    }
++
++    @Override
++    public boolean isComplete() {
++        return this.getId() != null && StringUtils.isNotBlank(this.getName());
++    }
++
++    @Override
++    public @NotNull CompletableFuture<PlayerProfile> update() {
++        return CompletableFuture.supplyAsync(() -> {
++            final CraftPlayerProfile clone = clone();
++            clone.complete(true);
++            return clone;
++        }, Util.PROFILE_EXECUTOR);
++    }
++
++    @Override
++    public boolean completeFromCache() {
++        return completeFromCache(false, GlobalConfiguration.get().proxies.isProxyOnlineMode());
++    }
++
++    public boolean completeFromCache(boolean onlineMode) {
++        return completeFromCache(false, onlineMode);
++    }
++
++    public boolean completeFromCache(boolean lookupUUID, boolean onlineMode) {
++        MinecraftServer server = MinecraftServer.getServer();
++        String name = profile.getName();
++        GameProfileCache userCache = server.getProfileCache();
++        if (this.getId() == null) {
++            final GameProfile profile;
++            if (onlineMode) {
++                profile = lookupUUID ? userCache.get(name).orElse(null) : userCache.getProfileIfCached(name);
++            } else {
++                // Make an OfflinePlayer using an offline mode UUID since the name has no profile
++                profile = new GameProfile(UUID.nameUUIDFromBytes(("OfflinePlayer:" + name).getBytes(Charsets.UTF_8)), name);
++            }
++            if (profile != null) {
++                // if old has it, assume its newer, so overwrite, else use cached if it was set and ours wasn't
++                copyProfileProperties(this.profile, profile);
++                this.profile = profile;
++            }
++        }
++
++        if ((profile.getName().isEmpty() || !hasTextures()) && this.getId() != null) {
++            Optional<GameProfile> optProfile = userCache.get(this.profile.getId());
++            if (optProfile.isPresent()) {
++                GameProfile profile = optProfile.get();
++                if (this.profile.getName().isEmpty()) {
++                    // if old has it, assume its newer, so overwrite, else use cached if it was set and ours wasn't
++                    copyProfileProperties(this.profile, profile);
++                    this.profile = profile;
++                } else if (profile != this.profile) {
++                    copyProfileProperties(profile, this.profile);
++                }
++            }
++        }
++        return this.isComplete();
++    }
++
++    public boolean complete(boolean textures) {
++        return complete(textures, GlobalConfiguration.get().proxies.isProxyOnlineMode());
++    }
++    public boolean complete(boolean textures, boolean onlineMode) {
++        MinecraftServer server = MinecraftServer.getServer();
++        boolean isCompleteFromCache = this.completeFromCache(true, onlineMode);
++        if (onlineMode && (!isCompleteFromCache || textures && !hasTextures())) {
++            ProfileResult result = server.getSessionService().fetchProfile(this.getId(), true);
++            if (result != null && result.profile() != null) {
++                copyProfileProperties(result.profile(), this.profile, true);
++            }
++            if (this.isComplete()) {
++                server.getProfileCache().add(this.profile);
++            }
++        }
++        return this.isComplete() && (!onlineMode || !textures || hasTextures());
++    }
++
++    private static void copyProfileProperties(GameProfile source, GameProfile target) {
++        copyProfileProperties(source, target, false);
++    }
++
++    private static void copyProfileProperties(GameProfile source, GameProfile target, boolean clearTarget) {
++        if (source == target) {
++            throw new IllegalArgumentException("Source and target profiles are the same (" + source + ")");
++        }
++        PropertyMap sourceProperties = source.getProperties();
++        PropertyMap targetProperties = target.getProperties();
++        if (clearTarget) targetProperties.clear();
++        if (sourceProperties.isEmpty()) {
++            return;
++        }
++
++        for (Property property : sourceProperties.values()) {
++            targetProperties.removeAll(property.name());
++            targetProperties.put(property.name(), property);
++        }
++    }
++
++    private static GameProfile createAuthLibProfile(UUID uniqueId, String name) {
++        return new GameProfile(
++            uniqueId != null ? uniqueId : Util.NIL_UUID,
++            name != null ? name : ""
++        );
++    }
++
++    private static ProfileProperty toBukkit(Property property) {
++        return new ProfileProperty(property.name(), property.value(), property.signature());
++    }
++
++    public static PlayerProfile asBukkitCopy(GameProfile gameProfile) {
++        CraftPlayerProfile profile = new CraftPlayerProfile(gameProfile.getId(), gameProfile.getName());
++        copyProfileProperties(gameProfile, profile.profile);
++        return profile;
++    }
++
++    public static PlayerProfile asBukkitMirror(GameProfile profile) {
++        return new CraftPlayerProfile(profile);
++    }
++
++    public static Property asAuthlib(ProfileProperty property) {
++        return new Property(property.getName(), property.getValue(), property.getSignature());
++    }
++
++    public static GameProfile asAuthlibCopy(PlayerProfile profile) {
++        CraftPlayerProfile craft = ((CraftPlayerProfile) profile);
++        return asAuthlib(craft.clone());
++    }
++
++    public static GameProfile asAuthlib(PlayerProfile profile) {
++        CraftPlayerProfile craft = ((CraftPlayerProfile) profile);
++        return craft.getGameProfile();
++    }
++
++    @Override
++    public @NotNull Map<String, Object> serialize() {
++        Map<String, Object> map = new LinkedHashMap<>();
++        if (this.getId() != null) {
++            map.put("uniqueId", this.getId().toString());
++        }
++        if (!this.getName().isEmpty()) {
++            map.put("name", getName());
++        }
++        if (!this.properties.isEmpty()) {
++            List<Object> propertiesData = new ArrayList<>();
++            for (ProfileProperty property : properties) {
++                propertiesData.add(CraftProfileProperty.serialize(new Property(property.getName(), property.getValue(), property.getSignature())));
++            }
++            map.put("properties", propertiesData);
++        }
++        return map;
++    }
++
++    public static CraftPlayerProfile deserialize(Map<String, Object> map) {
++        UUID uniqueId = ConfigSerializationUtil.getUuid(map, "uniqueId", true);
++        String name = ConfigSerializationUtil.getString(map, "name", true);
++
++        // This also validates the deserialized unique id and name (ensures that not both are null):
++        CraftPlayerProfile profile = new CraftPlayerProfile(uniqueId, name);
++
++        if (map.containsKey("properties")) {
++            for (Object propertyData : (List<?>) map.get("properties")) {
++                if (!(propertyData instanceof Map)) {
++                    throw new IllegalArgumentException("Property data (" + propertyData + ") is not a valid Map");
++                }
++                Property property = CraftProfileProperty.deserialize((Map<?, ?>) propertyData);
++                profile.profile.getProperties().put(property.name(), property);
++            }
++        }
++
++        return profile;
++    }
++
++    @Override
++    public boolean equals(Object obj) {
++        if (this == obj) return true;
++        if (!(obj instanceof CraftPlayerProfile otherProfile)) return false;
++        return Objects.equals(this.profile, otherProfile.profile);
++    }
++
++    @Override
++    public String toString() {
++        return "CraftPlayerProfile [uniqueId=" + getId() +
++            ", name=" + getName() +
++            ", properties=" + org.bukkit.craftbukkit.profile.CraftPlayerProfile.toString(this.profile.getProperties()) +
++            "]";
++    }
++
++    @Override
++    public int hashCode() {
++        return this.profile.hashCode();
++    }
++
++    private class PropertySet extends AbstractSet<ProfileProperty> {
++
++        @Override
++        @Nonnull
++        public Iterator<ProfileProperty> iterator() {
++            return new ProfilePropertyIterator(profile.getProperties().values().iterator());
++        }
++
++        @Override
++        public int size() {
++            return profile.getProperties().size();
++        }
++
++        @Override
++        public boolean add(ProfileProperty property) {
++            setProperty(property);
++            return true;
++        }
++
++        @Override
++        public boolean addAll(Collection<? extends ProfileProperty> c) {
++            //noinspection unchecked
++            setProperties((Collection<ProfileProperty>) c);
++            return true;
++        }
++
++        @Override
++        public boolean contains(Object o) {
++            return o instanceof ProfileProperty && profile.getProperties().containsKey(((ProfileProperty) o).getName());
++        }
++
++        private class ProfilePropertyIterator implements Iterator<ProfileProperty> {
++            private final Iterator<Property> iterator;
++
++            ProfilePropertyIterator(Iterator<Property> iterator) {
++                this.iterator = iterator;
++            }
++
++            @Override
++            public boolean hasNext() {
++                return iterator.hasNext();
++            }
++
++            @Override
++            public ProfileProperty next() {
++                return toBukkit(iterator.next());
++            }
++
++            @Override
++            public void remove() {
++                iterator.remove();
++            }
++        }
++    }
++}
+diff --git a/src/main/java/com/destroystokyo/paper/profile/PaperAuthenticationService.java b/src/main/java/com/destroystokyo/paper/profile/PaperAuthenticationService.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/profile/PaperAuthenticationService.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.profile;
++
++import com.mojang.authlib.Environment;
++import com.mojang.authlib.EnvironmentParser;
++import com.mojang.authlib.GameProfileRepository;
++import com.mojang.authlib.minecraft.MinecraftSessionService;
++import com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService;
++import com.mojang.authlib.yggdrasil.YggdrasilEnvironment;
++
++import java.net.Proxy;
++
++public class PaperAuthenticationService extends YggdrasilAuthenticationService {
++
++    private final Environment environment;
++
++    public PaperAuthenticationService(Proxy proxy) {
++        super(proxy);
++        this.environment = EnvironmentParser.getEnvironmentFromProperties().orElse(YggdrasilEnvironment.PROD.getEnvironment());
++    }
++
++    @Override
++    public MinecraftSessionService createMinecraftSessionService() {
++        return new PaperMinecraftSessionService(this.getServicesKeySet(),  this.getProxy(), this.environment);
++    }
++
++    @Override
++    public GameProfileRepository createProfileRepository() {
++        return new PaperGameProfileRepository(this.getProxy(), this.environment);
++    }
++}
+diff --git a/src/main/java/com/destroystokyo/paper/profile/PaperGameProfileRepository.java b/src/main/java/com/destroystokyo/paper/profile/PaperGameProfileRepository.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/profile/PaperGameProfileRepository.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.profile;
++
++import com.mojang.authlib.Environment;
++import com.mojang.authlib.ProfileLookupCallback;
++import com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository;
++import java.net.Proxy;
++
++public class PaperGameProfileRepository extends YggdrasilGameProfileRepository {
++    public PaperGameProfileRepository(Proxy proxy, Environment environment) {
++        super(proxy, environment);
++    }
++
++    @Override
++    public void findProfilesByNames(String[] names, ProfileLookupCallback callback) {
++        super.findProfilesByNames(names, callback);
++    }
++}
+diff --git a/src/main/java/com/destroystokyo/paper/profile/PaperMinecraftSessionService.java b/src/main/java/com/destroystokyo/paper/profile/PaperMinecraftSessionService.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/profile/PaperMinecraftSessionService.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.profile;
++
++import com.mojang.authlib.Environment;
++import com.mojang.authlib.yggdrasil.ProfileResult;
++import com.mojang.authlib.yggdrasil.ServicesKeySet;
++import com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService;
++
++import java.net.Proxy;
++import java.util.UUID;
++import org.jetbrains.annotations.Nullable;
++
++public class PaperMinecraftSessionService extends YggdrasilMinecraftSessionService {
++
++    protected PaperMinecraftSessionService(ServicesKeySet servicesKeySet, Proxy proxy, Environment environment) {
++        super(servicesKeySet, proxy, environment);
++    }
++
++    @Override
++    public @Nullable ProfileResult fetchProfile(final UUID profileId, final boolean requireSecure) {
++        return super.fetchProfile(profileId, requireSecure);
++    }
++}
+diff --git a/src/main/java/com/destroystokyo/paper/profile/SharedPlayerProfile.java b/src/main/java/com/destroystokyo/paper/profile/SharedPlayerProfile.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/profile/SharedPlayerProfile.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.profile;
++
++import com.mojang.authlib.GameProfile;
++import com.mojang.authlib.properties.Property;
++import org.jetbrains.annotations.NotNull;
++import org.jetbrains.annotations.Nullable;
++
++import java.util.UUID;
++
++public interface SharedPlayerProfile {
++
++    @Nullable UUID getUniqueId();
++
++    @Nullable String getName();
++
++    boolean removeProperty(@NotNull String property);
++
++    @Nullable Property getProperty(@NotNull String propertyName);
++
++    @Nullable void setProperty(@NotNull String propertyName, @Nullable Property property);
++
++    @NotNull GameProfile buildGameProfile();
++}
+diff --git a/src/main/java/io/papermc/paper/util/MCUtil.java b/src/main/java/io/papermc/paper/util/MCUtil.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/io/papermc/paper/util/MCUtil.java
++++ b/src/main/java/io/papermc/paper/util/MCUtil.java
+@@ -0,0 +0,0 @@
+ package io.papermc.paper.util;
+ 
++import com.destroystokyo.paper.profile.CraftPlayerProfile;
++import com.destroystokyo.paper.profile.PlayerProfile;
+ import com.google.common.collect.ImmutableList;
+ import com.google.common.util.concurrent.ThreadFactoryBuilder;
+ import io.papermc.paper.math.BlockPosition;
+@@ -0,0 +0,0 @@ import net.minecraft.world.level.ClipContext;
+ import net.minecraft.world.level.Level;
+ import net.minecraft.world.phys.Vec3;
+ import org.apache.commons.lang.exception.ExceptionUtils;
++import com.mojang.authlib.GameProfile;
+ import org.bukkit.Location;
+ import org.bukkit.block.BlockFace;
+ import org.bukkit.craftbukkit.CraftWorld;
+@@ -0,0 +0,0 @@ public final class MCUtil {
+         return run.get();
+     }
+ 
++    public static PlayerProfile toBukkit(GameProfile profile) {
++        return CraftPlayerProfile.asBukkitMirror(profile);
++    }
++
+     /**
+      * Calculates distance between 2 entities
+      * @param e1
+diff --git a/src/main/java/net/minecraft/server/Main.java b/src/main/java/net/minecraft/server/Main.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/Main.java
++++ b/src/main/java/net/minecraft/server/Main.java
+@@ -0,0 +0,0 @@ public class Main {
+             }
+ 
+             File file = (File) optionset.valueOf("universe"); // CraftBukkit
+-            Services services = Services.create(new YggdrasilAuthenticationService(Proxy.NO_PROXY), file, optionset); // Paper - pass OptionSet to load paper config files
++            Services services = Services.create(new com.destroystokyo.paper.profile.PaperAuthenticationService(Proxy.NO_PROXY), file, optionset); // Paper - pass OptionSet to load paper config files; override authentication service
+             // CraftBukkit start
+             String s = (String) Optional.ofNullable((String) optionset.valueOf("world")).orElse(dedicatedserversettings.getProperties().levelName);
+             LevelStorageSource convertable = LevelStorageSource.createDefault(file.toPath());
+diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/GameProfileCache.java
++++ b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+         return this.operationCount.incrementAndGet();
+     }
+ 
++    // Paper start
++    public @Nullable GameProfile getProfileIfCached(String name) {
++        GameProfileCache.GameProfileInfo entry = this.profilesByName.get(name.toLowerCase(Locale.ROOT));
++        if (entry == null) {
++            return null;
++        }
++        entry.setLastAccess(this.getNextOperation());
++        return entry.getProfile();
++    }
++    // Paper end
++
+     public Optional<GameProfile> get(String name) {
+         String s1 = name.toLowerCase(Locale.ROOT);
+         GameProfileCache.GameProfileInfo usercache_usercacheentry = (GameProfileCache.GameProfileInfo) this.profilesByName.get(s1);
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ import org.yaml.snakeyaml.error.MarkedYAMLException;
+ 
+ import net.md_5.bungee.api.chat.BaseComponent; // Spigot
+ 
++import javax.annotation.Nullable; // Paper
++import javax.annotation.Nonnull; // Paper
++
+ public final class CraftServer implements Server {
+     private final String serverName = "Paper"; // Paper
+     private final String serverVersion;
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+     static {
+         ConfigurationSerialization.registerClass(CraftOfflinePlayer.class);
+         ConfigurationSerialization.registerClass(CraftPlayerProfile.class);
++        ConfigurationSerialization.registerClass(com.destroystokyo.paper.profile.CraftPlayerProfile.class); // Paper
+         CraftItemFactory.instance();
+         CraftEntityFactory.instance();
+     }
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+     public boolean suggestPlayerNamesWhenNullTabCompletions() {
+         return io.papermc.paper.configuration.GlobalConfiguration.get().commands.suggestPlayerNamesWhenNullTabCompletions;
+     }
++
++    @Override
++    public com.destroystokyo.paper.profile.PlayerProfile createProfile(@Nonnull UUID uuid) {
++        return createProfile(uuid, null);
++    }
++
++    @Override
++    public com.destroystokyo.paper.profile.PlayerProfile createProfile(@Nonnull String name) {
++        return createProfile(null, name);
++    }
++
++    @Override
++    public com.destroystokyo.paper.profile.PlayerProfile createProfile(@Nullable UUID uuid, @Nullable String name) {
++        Player player = uuid != null ? Bukkit.getPlayer(uuid) : (name != null ? Bukkit.getPlayerExact(name) : null);
++        if (player != null) return new com.destroystokyo.paper.profile.CraftPlayerProfile((CraftPlayer) player);
++
++        return new com.destroystokyo.paper.profile.CraftPlayerProfile(uuid, name);
++    }
++
++    @Override
++    public com.destroystokyo.paper.profile.PlayerProfile createProfileExact(@Nullable UUID uuid, @Nullable String name) {
++        Player player = uuid != null ? Bukkit.getPlayer(uuid) : (name != null ? Bukkit.getPlayerExact(name) : null);
++        if (player == null) {
++            return new com.destroystokyo.paper.profile.CraftPlayerProfile(uuid, name);
++        }
++
++        if (java.util.Objects.equals(uuid, player.getUniqueId()) && java.util.Objects.equals(name, player.getName())) {
++            return new com.destroystokyo.paper.profile.CraftPlayerProfile((CraftPlayer) player);
++        }
++
++        final com.mojang.authlib.GameProfile profile = new com.mojang.authlib.GameProfile(
++            uuid != null ? uuid : net.minecraft.Util.NIL_UUID,
++            name != null ? name : ""
++        );
++        profile.getProperties().putAll(((CraftPlayer) player).getHandle().getGameProfile().getProperties());
++        return new com.destroystokyo.paper.profile.CraftPlayerProfile(profile);
++    }
+     // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
++++ b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
+@@ -0,0 +0,0 @@ import org.bukkit.profile.PlayerProfile;
+ import org.bukkit.profile.PlayerTextures;
+ 
+ @SerializableAs("PlayerProfile")
+-public final class CraftPlayerProfile implements PlayerProfile {
++public final class CraftPlayerProfile implements PlayerProfile, com.destroystokyo.paper.profile.SharedPlayerProfile { // Paper
+ 
+     @Nonnull
+     public static GameProfile validateSkullProfile(@Nonnull GameProfile gameProfile) {
+@@ -0,0 +0,0 @@ public final class CraftPlayerProfile implements PlayerProfile {
+         }
+     }
+ 
+-    void removeProperty(String propertyName) {
+-        this.properties.removeAll(propertyName);
++    // Paper start - change return value for shared interface
++    public boolean removeProperty(String propertyName) {
++        return !this.properties.removeAll(propertyName).isEmpty();
++        // Paper end
+     }
+ 
+     void rebuildDirtyProperties() {
+@@ -0,0 +0,0 @@ public final class CraftPlayerProfile implements PlayerProfile {
+ 
+     @Override
+     public Map<String, Object> serialize() {
++        // Paper - diff on change
+         Map<String, Object> map = new LinkedHashMap<>();
+         if (this.getUniqueId() != null) {
+             map.put("uniqueId", this.getUniqueId().toString());
+@@ -0,0 +0,0 @@ public final class CraftPlayerProfile implements PlayerProfile {
+             });
+             map.put("properties", propertiesData);
+         }
++        // Paper - diff on change
+         return map;
+     }
+ 
+     public static CraftPlayerProfile deserialize(Map<String, Object> map) {
++        // Paper - diff on change
+         UUID uniqueId = ConfigSerializationUtil.getUuid(map, "uniqueId", true);
+         String name = ConfigSerializationUtil.getString(map, "name", true);
+ 
+@@ -0,0 +0,0 @@ public final class CraftPlayerProfile implements PlayerProfile {
+                 profile.properties.put(property.name(), property);
+             }
+         }
+-
++        // Paper - diff on change
+         return profile;
+     }
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerTextures.java b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerTextures.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerTextures.java
++++ b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerTextures.java
+@@ -0,0 +0,0 @@ public final class CraftPlayerTextures implements PlayerTextures {
+         }
+     }
+ 
+-    private final CraftPlayerProfile profile;
++    private final com.destroystokyo.paper.profile.SharedPlayerProfile profile; // Paper
+ 
+     // The textures data is loaded lazily:
+     private boolean loaded = false;
+@@ -0,0 +0,0 @@ public final class CraftPlayerTextures implements PlayerTextures {
+     // GameProfiles (even if these modifications are later reverted).
+     private boolean dirty = false;
+ 
+-    CraftPlayerTextures(@Nonnull CraftPlayerProfile profile) {
++    public CraftPlayerTextures(@Nonnull com.destroystokyo.paper.profile.SharedPlayerProfile profile) { // Paper
+         this.profile = profile;
+     }
+ 

patches/server/Be-a-bit-more-informative-in-maxHealth-exception.patch

@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <rileysebastianpark@gmail.com>
+Date: Thu, 3 Mar 2016 02:18:39 -0600
+Subject: [PATCH] Be a bit more informative in maxHealth exception
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+@@ -0,0 +0,0 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
+     @Override
+     public void setHealth(double health) {
+         health = (float) health;
+-        Preconditions.checkArgument(health >= 0 && health <= this.getMaxHealth(), "Health value (%s) must be between 0 and %s", health, this.getMaxHealth());
++        // Paper start - Be more informative
++        Preconditions.checkArgument(health >= 0 && health <= this.getMaxHealth(),
++            "Health value (%s) must be between 0 and %s. (attribute base value: %s%s)",
++            health, this.getMaxHealth(), this.getHandle().getAttribute(Attributes.MAX_HEALTH).getBaseValue(), this instanceof CraftPlayer ? ", player: " + this.getName() : ""
++        );
++        // Paper end
+ 
+         // during world generation, we don't want to run logic for dropping items and xp
+         if (this.getHandle().generation && health == 0) {

patches/server/Block-player-logins-during-server-shutdown.patch

@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Sun, 2 Jul 2017 21:35:56 -0500
+Subject: [PATCH] Block player logins during server shutdown
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+ 
+     @Override
+     public void tick() {
++        // Paper start - Do not allow logins while the server is shutting down
++        if (!MinecraftServer.getServer().isRunning()) {
++            this.disconnect(org.bukkit.craftbukkit.util.CraftChatMessage.fromString(org.spigotmc.SpigotConfig.restartMessage)[0]);
++            return;
++        }
++        // Paper end - Do not allow logins while the server is shutting down
+         if (this.state == ServerLoginPacketListenerImpl.State.VERIFYING) {
+             this.verifyLoginAndFinishConnectionSetup((GameProfile) Objects.requireNonNull(this.authenticatedProfile));
+         }

patches/server/Bound-Treasure-Maps-to-World-Border.patch

@@ -0,0 +1,47 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Tue, 20 Dec 2016 15:15:11 -0500
+Subject: [PATCH] Bound Treasure Maps to World Border
+
+Make it so a Treasure Map does not target a structure outside of the
+World Border, where players are not even able to reach.
+
+This also would help the case where a players close to the border, and one
+that is outside happens to be closer, but unreachable, yet another reachable
+one is in border that would of been missed.
+
+diff --git a/src/main/java/net/minecraft/world/level/border/WorldBorder.java b/src/main/java/net/minecraft/world/level/border/WorldBorder.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/border/WorldBorder.java
++++ b/src/main/java/net/minecraft/world/level/border/WorldBorder.java
+@@ -0,0 +0,0 @@ public class WorldBorder {
+         return (double) (pos.getX() + 1) > this.getMinX() && (double) pos.getX() < this.getMaxX() && (double) (pos.getZ() + 1) > this.getMinZ() && (double) pos.getZ() < this.getMaxZ();
+     }
+ 
++    // Paper start - Bound treasure maps to world border
++    private final BlockPos.MutableBlockPos mutPos = new BlockPos.MutableBlockPos();
++    public boolean isBlockInBounds(int chunkX, int chunkZ) {
++        this.mutPos.set(chunkX, 64, chunkZ);
++        return this.isWithinBounds(this.mutPos);
++    }
++    public boolean isChunkInBounds(int chunkX, int chunkZ) {
++        this.mutPos.set(((chunkX << 4) + 15), 64, (chunkZ << 4) + 15);
++        return this.isWithinBounds(this.mutPos);
++    }
++    // Paper end - Bound treasure maps to world border
++
+     public boolean isWithinBounds(ChunkPos pos) {
+         return (double) pos.getMaxBlockX() > this.getMinX() && (double) pos.getMinBlockX() < this.getMaxX() && (double) pos.getMaxBlockZ() > this.getMinZ() && (double) pos.getMinBlockZ() < this.getMaxZ();
+     }
+diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
++++ b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
+@@ -0,0 +0,0 @@ public abstract class ChunkGenerator {
+ 
+             while (iterator.hasNext()) {
+                 ChunkPos chunkcoordintpair = (ChunkPos) iterator.next();
++                if (!world.paperConfig().environment.locateStructuresOutsideWorldBorder && !world.getWorldBorder().isChunkInBounds(chunkcoordintpair.x, chunkcoordintpair.z)) { continue; } // Paper - Bound treasure maps to world border
+ 
+                 blockposition_mutableblockposition.set(SectionPos.sectionToBlockCoord(chunkcoordintpair.x, 8), 32, SectionPos.sectionToBlockCoord(chunkcoordintpair.z, 8));
+                 double d1 = blockposition_mutableblockposition.distSqr(center);

patches/server/Cache-user-authenticator-threads.patch

@@ -0,0 +1,64 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alfie Cleveland <alfeh@me.com>
+Date: Fri, 25 Nov 2016 13:22:40 +0000
+Subject: [PATCH] Cache user authenticator threads
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+     // CraftBukkit end
+     private static final AtomicInteger UNIQUE_THREAD_ID = new AtomicInteger(0);
+     static final Logger LOGGER = LogUtils.getLogger();
++    private static final java.util.concurrent.ExecutorService authenticatorPool = java.util.concurrent.Executors.newCachedThreadPool(new com.google.common.util.concurrent.ThreadFactoryBuilder().setNameFormat("User Authenticator #%d").setUncaughtExceptionHandler(new DefaultUncaughtExceptionHandler(LOGGER)).build()); // Paper - Cache authenticator threads
+     private static final int MAX_TICKS_BEFORE_LOGIN = 600;
+     private final byte[] challenge;
+     final MinecraftServer server;
+@@ -0,0 +0,0 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+                 this.connection.send(new ClientboundHelloPacket("", this.server.getKeyPair().getPublic().getEncoded(), this.challenge, true));
+             } else {
+                 // CraftBukkit start
+-                Thread thread = new Thread("User Authenticator #" + ServerLoginPacketListenerImpl.UNIQUE_THREAD_ID.incrementAndGet()) {
++                // Paper start - Cache authenticator threads
++                authenticatorPool.execute(new Runnable() {
+ 
+                     @Override
+                     public void run() {
+@@ -0,0 +0,0 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+                             ServerLoginPacketListenerImpl.this.server.server.getLogger().log(java.util.logging.Level.WARNING, "Exception verifying " + ServerLoginPacketListenerImpl.this.requestedUsername, ex);
+                         }
+                     }
+-                };
+-
+-                thread.setUncaughtExceptionHandler(new DefaultUncaughtExceptionHandler(ServerLoginPacketListenerImpl.LOGGER));
+-                thread.start();
++                });
++                // Paper end - Cache authenticator threads
+                 // CraftBukkit end
+             }
+ 
+@@ -0,0 +0,0 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+             throw new IllegalStateException("Protocol error", cryptographyexception);
+         }
+ 
+-        Thread thread = new Thread("User Authenticator #" + ServerLoginPacketListenerImpl.UNIQUE_THREAD_ID.incrementAndGet()) {
++        // Paper start - Cache authenticator threads
++        authenticatorPool.execute(new Runnable() {
+             public void run() {
+                 String s1 = (String) Objects.requireNonNull(ServerLoginPacketListenerImpl.this.requestedUsername, "Player name not initialized");
+ 
+@@ -0,0 +0,0 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+ 
+                 return ServerLoginPacketListenerImpl.this.server.getPreventProxyConnections() && socketaddress instanceof InetSocketAddress ? ((InetSocketAddress) socketaddress).getAddress() : null;
+             }
+-        };
+-
+-        thread.setUncaughtExceptionHandler(new DefaultUncaughtExceptionHandler(ServerLoginPacketListenerImpl.LOGGER));
+-        thread.start();
++        });
++        // Paper end - Cache authenticator threads
+     }
+ 
+     // CraftBukkit start

patches/server/Cap-Entity-Collisions.patch

@@ -0,0 +1,44 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sun, 22 Jan 2017 18:07:56 -0500
+Subject: [PATCH] Cap Entity Collisions
+
+Limit a single entity to colliding a max of configurable times per tick.
+This will alleviate issues where living entities are hoarded in 1x1 pens
+
+This is not tied to the maxEntityCramming rule. Cramming will still apply
+just as it does in Vanilla, but entity pushing logic will be capped.
+
+You can set this to 0 to disable collisions.
+
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+     public long activatedTick = Integer.MIN_VALUE;
+     public void inactiveTick() { }
+     // Spigot end
++    protected int numCollisions = 0; // Paper - Cap entity collisions
+     // Paper start - Entity origin API
+     @javax.annotation.Nullable
+     private org.bukkit.util.Vector origin;
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+                 }
+ 
+                 Iterator iterator1 = list.iterator();
++                this.numCollisions = Math.max(0, this.numCollisions - this.level().paperConfig().collisions.maxEntityCollisions); // Paper - Cap entity collisions
+ 
+-                while (iterator1.hasNext()) {
++                while (iterator1.hasNext() && this.numCollisions < this.level().paperConfig().collisions.maxEntityCollisions) { // Paper - Cap entity collisions
+                     Entity entity1 = (Entity) iterator1.next();
+-
++                    entity1.numCollisions++; // Paper - Cap entity collisions
++                    this.numCollisions++; // Paper - Cap entity collisions
+                     this.doPush(entity1);
+                 }
+             }

patches/server/Chunk-Save-Reattempt.patch

@@ -0,0 +1,55 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 4 Mar 2013 23:46:10 -0500
+Subject: [PATCH] Chunk Save Reattempt
+
+We commonly have "Stream Closed" errors on chunk saving, so this code should re-try to save the chunk in the event of failure and hopefully prevent rollbacks.
+
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
++++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
+                     return true;
+                 }
+             } catch (IOException ioexception) {
+-                com.destroystokyo.paper.exception.ServerInternalException.reportInternalException(ioexception); // Paper - ServerExceptionEvent
++                com.destroystokyo.paper.util.SneakyThrow.sneaky(ioexception); // Paper - Chunk save reattempt; we want the upper try/catch to retry this
+                 return false;
+             }
+         }
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
++++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+@@ -0,0 +0,0 @@ public class RegionFileStorage implements AutoCloseable {
+ 
+     protected void write(ChunkPos pos, @Nullable CompoundTag nbt) throws IOException {
+         RegionFile regionfile = this.getRegionFile(pos, false); // CraftBukkit
++        // Paper start - Chunk save reattempt
++        int attempts = 0;
++        Exception lastException = null;
++        while (attempts++ < 5) { try {
++        // Paper end - Chunk save reattempt
+ 
+         if (nbt == null) {
+             regionfile.clear(pos);
+@@ -0,0 +0,0 @@ public class RegionFileStorage implements AutoCloseable {
+                 dataoutputstream.close();
+             }
+         }
++        // Paper start - Chunk save reattempt
++                return;
++            } catch (Exception ex)  {
++                lastException = ex;
++            }
++        }
+ 
++        if (lastException != null) {
++            com.destroystokyo.paper.exception.ServerInternalException.reportInternalException(lastException);
++            net.minecraft.server.MinecraftServer.LOGGER.error("Failed to save chunk {}", pos, lastException);
++        }
++        // Paper end - Chunk save reattempt
+     }
+ 
+     public void close() throws IOException {

patches/server/Complete-resource-pack-API.patch

@@ -0,0 +1,49 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jedediah Smith <jedediah@silencegreys.com>
+Date: Sat, 4 Apr 2015 23:17:52 -0400
+Subject: [PATCH] Complete resource pack API
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+@@ -0,0 +0,0 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+             callback.packEventReceived(packet.id(), net.kyori.adventure.resource.ResourcePackStatus.valueOf(packet.action().name()), this.getCraftPlayer());
+         }
+         // Paper end
+-        this.cserver.getPluginManager().callEvent(new PlayerResourcePackStatusEvent(this.getCraftPlayer(), packet.id(), PlayerResourcePackStatusEvent.Status.values()[packet.action().ordinal()])); // CraftBukkit
++        // Paper start - store last pack status
++        PlayerResourcePackStatusEvent.Status packStatus = PlayerResourcePackStatusEvent.Status.values()[packet.action().ordinal()];
++        player.getBukkitEntity().resourcePackStatus = packStatus;
++        this.cserver.getPluginManager().callEvent(new PlayerResourcePackStatusEvent(this.getCraftPlayer(), packet.id(), packStatus)); // CraftBukkit
++        // Paper end - store last pack status
+ 
+     }
+ 
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -0,0 +0,0 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+     private double healthScale = 20;
+     private CraftWorldBorder clientWorldBorder = null;
+     private BorderChangeListener clientWorldBorderListener = this.createWorldBorderListener();
++    public org.bukkit.event.player.PlayerResourcePackStatusEvent.Status resourcePackStatus; // Paper - more resource pack API
+ 
+     public CraftPlayer(CraftServer server, ServerPlayer entity) {
+         super(server, entity);
+@@ -0,0 +0,0 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+     }
+     // Paper end - adventure
+ 
++    // Paper start - more resource pack API
++    @Override
++    public org.bukkit.event.player.PlayerResourcePackStatusEvent.Status getResourcePackStatus() {
++        return this.resourcePackStatus;
++    }
++    // Paper end - more resource pack API
++
+     @Override
+     public void removeResourcePack(UUID id) {
+         Preconditions.checkArgument(id != null, "Resource pack id cannot be null");

patches/server/Configurable-Cartographer-Treasure-Maps.patch

@@ -0,0 +1,47 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Tue, 20 Dec 2016 15:26:27 -0500
+Subject: [PATCH] Configurable Cartographer Treasure Maps
+
+Allow configuring for cartographers to return the same map location
+
+Also allow turning off treasure maps all together as they can eat up Map ID's
+which are limited in quantity.
+
+diff --git a/src/main/java/net/minecraft/world/entity/npc/VillagerTrades.java b/src/main/java/net/minecraft/world/entity/npc/VillagerTrades.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/npc/VillagerTrades.java
++++ b/src/main/java/net/minecraft/world/entity/npc/VillagerTrades.java
+@@ -0,0 +0,0 @@ public class VillagerTrades {
+                 return null;
+             } else {
+                 ServerLevel serverLevel = (ServerLevel)entity.level();
+-                BlockPos blockPos = serverLevel.findNearestMapStructure(this.destination, entity.blockPosition(), 100, true);
++                if (!serverLevel.paperConfig().environment.treasureMaps.enabled) return null; // Paper - Configurable cartographer treasure maps
++                BlockPos blockPos = serverLevel.findNearestMapStructure(this.destination, entity.blockPosition(), 100, !serverLevel.paperConfig().environment.treasureMaps.findAlreadyDiscoveredVillager); // Paper - Configurable cartographer treasure maps
+                 if (blockPos != null) {
+                     ItemStack itemStack = MapItem.create(serverLevel, blockPos.getX(), blockPos.getZ(), (byte)2, true, true);
+                     MapItem.renderBiomePreviewMap(serverLevel, itemStack);
+diff --git a/src/main/java/net/minecraft/world/level/storage/loot/functions/ExplorationMapFunction.java b/src/main/java/net/minecraft/world/level/storage/loot/functions/ExplorationMapFunction.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/storage/loot/functions/ExplorationMapFunction.java
++++ b/src/main/java/net/minecraft/world/level/storage/loot/functions/ExplorationMapFunction.java
+@@ -0,0 +0,0 @@ public class ExplorationMapFunction extends LootItemConditionalFunction {
+             Vec3 vec3 = context.getParamOrNull(LootContextParams.ORIGIN);
+             if (vec3 != null) {
+                 ServerLevel serverLevel = context.getLevel();
++                // Paper start - Configurable cartographer treasure maps
++                if (!serverLevel.paperConfig().environment.treasureMaps.enabled) {
++                    /*
++                     * NOTE: I fear users will just get a plain map as their "treasure"
++                     * This is preferable to disrespecting the config.
++                     */
++                    return stack;
++                }
++                // Paper end - Configurable cartographer treasure maps
+                 BlockPos blockPos = serverLevel.findNearestMapStructure(
+-                    this.destination, BlockPos.containing(vec3), this.searchRadius, this.skipKnownStructures
++                    this.destination, BlockPos.containing(vec3), this.searchRadius, !serverLevel.paperConfig().environment.treasureMaps.findAlreadyDiscoveredLootTable.or(!this.skipKnownStructures) // Paper - Configurable cartographer treasure maps
+                 );
+                 if (blockPos != null) {
+                     ItemStack itemStack = MapItem.create(serverLevel, blockPos.getX(), blockPos.getZ(), this.zoom, true, true);

patches/server/Configurable-Chunk-Inhabited-Time.patch

@@ -0,0 +1,30 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 28 Mar 2016 20:46:14 -0400
+Subject: [PATCH] Configurable Chunk Inhabited Time
+
+Vanilla stores how long a chunk has been active on a server, and dynamically scales some
+aspects of vanilla gameplay to this factor.
+
+For people who want all chunks to be treated equally, you can chose a fixed value.
+
+This allows to fine-tune vanilla gameplay.
+
+diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
++++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+@@ -0,0 +0,0 @@ public class LevelChunk extends ChunkAccess {
+         return new ChunkAccess.TicksToSave(this.blockTicks, this.fluidTicks);
+     }
+ 
++    // Paper start
++    @Override
++    public long getInhabitedTime() {
++        return this.level.paperConfig().chunks.fixedChunkInhabitedTime < 0 ? super.getInhabitedTime() : this.level.paperConfig().chunks.fixedChunkInhabitedTime;
++    }
++    // Paper end
++
+     @Override
+     public GameEventListenerRegistry getListenerRegistry(int ySectionCoord) {
+         Level world = this.level;

patches/server/Configurable-Disabling-Cat-Chest-Detection.patch

@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Thu, 3 Mar 2016 01:13:45 -0600
+Subject: [PATCH] Configurable Disabling Cat Chest Detection
+
+Offers a gameplay feature to stop cats from blocking chests
+
+diff --git a/src/main/java/net/minecraft/world/level/block/ChestBlock.java b/src/main/java/net/minecraft/world/level/block/ChestBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/ChestBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/ChestBlock.java
+@@ -0,0 +0,0 @@ public class ChestBlock extends AbstractChestBlock<ChestBlockEntity> implements
+     }
+ 
+     private static boolean isCatSittingOnChest(LevelAccessor world, BlockPos pos) {
++        // Paper start - Option to disable chest cat detection
++        if (world.getMinecraftWorld().paperConfig().entities.behavior.disableChestCatDetection) {
++            return false;
++        }
++        // Paper end - Option to disable chest cat detection
+         List<Cat> list = world.getEntitiesOfClass(Cat.class, new AABB((double) pos.getX(), (double) (pos.getY() + 1), (double) pos.getZ(), (double) (pos.getX() + 1), (double) (pos.getY() + 2), (double) (pos.getZ() + 1)));
+ 
+         if (!list.isEmpty()) {

patches/server/Configurable-Non-Player-Arrow-Despawn-Rate.patch

@@ -0,0 +1,20 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 18 Mar 2016 15:12:22 -0400
+Subject: [PATCH] Configurable Non Player Arrow Despawn Rate
+
+Can set a much shorter despawn rate for arrows that players can not pick up.
+
+diff --git a/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java b/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
++++ b/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
+@@ -0,0 +0,0 @@ public abstract class AbstractArrow extends Projectile {
+ 
+     protected void tickDespawn() {
+         ++this.life;
+-        if (this.life >= ((this instanceof ThrownTrident) ? this.level().spigotConfig.tridentDespawnRate : this.level().spigotConfig.arrowDespawnRate)) { // Spigot
++        if (this.life >= (pickup == Pickup.CREATIVE_ONLY ? this.level().paperConfig().entities.spawning.creativeArrowDespawnRate.value() : (pickup == Pickup.DISALLOWED ? this.level().paperConfig().entities.spawning.nonPlayerArrowDespawnRate.value() : ((this instanceof ThrownTrident) ? this.level().spigotConfig.tridentDespawnRate : this.level().spigotConfig.arrowDespawnRate)))) { // Spigot // Paper - Configurable non-player arrow despawn rate; TODO: Extract this to init?
+             this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         }
+ 

patches/server/Configurable-Player-Collision.patch

@@ -0,0 +1,101 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Wed, 13 Apr 2016 02:10:49 -0400
+Subject: [PATCH] Configurable Player Collision
+
+
+diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket.java
++++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket.java
+@@ -0,0 +0,0 @@ public class ClientboundSetPlayerTeamPacket implements Packet<ClientGamePacketLi
+             ComponentSerialization.TRUSTED_STREAM_CODEC.encode(buf, this.displayName);
+             buf.writeByte(this.options);
+             buf.writeUtf(this.nametagVisibility);
+-            buf.writeUtf(this.collisionRule);
++            buf.writeUtf(!io.papermc.paper.configuration.GlobalConfiguration.get().collisions.enablePlayerCollisions ? "never" : this.collisionRule); // Paper - Configurable player collision
+             buf.writeEnum(this.color);
+             ComponentSerialization.TRUSTED_STREAM_CODEC.encode(buf, this.playerPrefix);
+             ComponentSerialization.TRUSTED_STREAM_CODEC.encode(buf, this.playerSuffix);
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             this.server.getPluginManager().callEvent(new org.bukkit.event.world.WorldLoadEvent(worldserver.getWorld()));
+         }
+ 
++        // Paper start - Configurable player collision; Handle collideRule team for player collision toggle
++        final ServerScoreboard scoreboard = this.getScoreboard();
++        final java.util.Collection<String> toRemove = scoreboard.getPlayerTeams().stream().filter(team -> team.getName().startsWith("collideRule_")).map(net.minecraft.world.scores.PlayerTeam::getName).collect(java.util.stream.Collectors.toList());
++        for (String teamName : toRemove) {
++            scoreboard.removePlayerTeam(scoreboard.getPlayerTeam(teamName)); // Clean up after ourselves
++        }
++
++        if (!io.papermc.paper.configuration.GlobalConfiguration.get().collisions.enablePlayerCollisions) {
++            this.getPlayerList().collideRuleTeamName = org.apache.commons.lang3.StringUtils.left("collideRule_" + java.util.concurrent.ThreadLocalRandom.current().nextInt(), 16);
++            net.minecraft.world.scores.PlayerTeam collideTeam = scoreboard.addPlayerTeam(this.getPlayerList().collideRuleTeamName);
++            collideTeam.setSeeFriendlyInvisibles(false); // Because we want to mimic them not being on a team at all
++        }
++        // Paper end - Configurable player collision
++
+         this.server.enablePlugins(org.bukkit.plugin.PluginLoadOrder.POSTWORLD);
+         this.server.getPluginManager().callEvent(new ServerLoadEvent(ServerLoadEvent.LoadType.STARTUP));
+         if (io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper != null) io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper.pluginsEnabled(); // Paper - Remap plugins
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
++++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+     // CraftBukkit start
+     private CraftServer cserver;
+     private final Map<String,ServerPlayer> playersByName = new java.util.HashMap<>();
++    public @Nullable String collideRuleTeamName; // Paper - Configurable player collision
+ 
+     public PlayerList(MinecraftServer server, LayeredRegistryAccess<RegistryLayer> registryManager, PlayerDataStorage saveHandler, int maxPlayers) {
+         this.cserver = server.server = new CraftServer((DedicatedServer) server, this);
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+ 
+         player.initInventoryMenu();
+         // CraftBukkit - Moved from above, added world
++        // Paper start - Configurable player collision; Add to collideRule team if needed
++        final net.minecraft.world.scores.Scoreboard scoreboard = this.getServer().getLevel(Level.OVERWORLD).getScoreboard();
++        final PlayerTeam collideRuleTeam = scoreboard.getPlayerTeam(this.collideRuleTeamName);
++        if (this.collideRuleTeamName != null && collideRuleTeam != null && player.getTeam() == null) {
++            scoreboard.addPlayerToTeam(player.getScoreboardName(), collideRuleTeam);
++        }
++        // Paper end - Configurable player collision
+         PlayerList.LOGGER.info("{}[{}] logged in with entity id {} at ([{}]{}, {}, {})", player.getName().getString(), s1, player.getId(), worldserver1.serverLevelData.getLevelName(), player.getX(), player.getY(), player.getZ());
+     }
+ 
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+         entityplayer.doTick(); // SPIGOT-924
+         // CraftBukkit end
+ 
++        // Paper start - Configurable player collision; Remove from collideRule team if needed
++        if (this.collideRuleTeamName != null) {
++            final net.minecraft.world.scores.Scoreboard scoreBoard = this.server.getLevel(Level.OVERWORLD).getScoreboard();
++            final PlayerTeam team = scoreBoard.getPlayersTeam(this.collideRuleTeamName);
++            if (entityplayer.getTeam() == team && team != null) {
++                scoreBoard.removePlayerFromTeam(entityplayer.getScoreboardName(), team);
++            }
++        }
++        // Paper end - Configurable player collision
++
+         this.save(entityplayer);
+         if (entityplayer.isPassenger()) {
+             Entity entity = entityplayer.getRootVehicle();
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+         }
+         // CraftBukkit end
+ 
++        // Paper start - Configurable player collision; Remove collideRule team if it exists
++        if (this.collideRuleTeamName != null) {
++            final net.minecraft.world.scores.Scoreboard scoreboard = this.getServer().getLevel(Level.OVERWORLD).getScoreboard();
++            final PlayerTeam team = scoreboard.getPlayersTeam(this.collideRuleTeamName);
++            if (team != null) scoreboard.removePlayerTeam(team);
++        }
++        // Paper end - Configurable player collision
+     }
+ 
+     // CraftBukkit start

patches/server/Configurable-RCON-IP-address.patch

@@ -0,0 +1,47 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sat, 16 Apr 2016 00:39:33 -0400
+Subject: [PATCH] Configurable RCON IP address
+
+For servers with multiple IP's, ability to bind to a specific interface.
+
+== AT ==
+public net.minecraft.server.dedicated.Settings getStringRaw(Ljava/lang/String;)Ljava/lang/String;
+
+diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java
++++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java
+@@ -0,0 +0,0 @@ public class DedicatedServerProperties extends Settings<DedicatedServerPropertie
+     public final WorldOptions worldOptions;
+     public boolean acceptsTransfers;
+ 
++    public final String rconIp; // Paper - Configurable rcon ip
++
+     // CraftBukkit start
+     public DedicatedServerProperties(Properties properties, OptionSet optionset) {
+         super(properties, optionset);
+@@ -0,0 +0,0 @@ public class DedicatedServerProperties extends Settings<DedicatedServerPropertie
+         }, WorldPresets.NORMAL.location().toString()));
+         this.serverResourcePackInfo = DedicatedServerProperties.getServerPackInfo(this.get("resource-pack-id", ""), this.get("resource-pack", ""), this.get("resource-pack-sha1", ""), this.getLegacyString("resource-pack-hash"), this.get("require-resource-pack", false), this.get("resource-pack-prompt", ""));
+         this.initialDataPackConfiguration = DedicatedServerProperties.getDatapackConfig(this.get("initial-enabled-packs", String.join(",", WorldDataConfiguration.DEFAULT.dataPacks().getEnabled())), this.get("initial-disabled-packs", String.join(",", WorldDataConfiguration.DEFAULT.dataPacks().getDisabled())));
++        // Paper start - Configurable rcon ip
++        final String rconIp = this.getStringRaw("rcon.ip");
++        this.rconIp = rconIp == null ? this.serverIp : rconIp;
++        // Paper end - Configurable rcon ip
+     }
+ 
+     // CraftBukkit start
+diff --git a/src/main/java/net/minecraft/server/rcon/thread/RconThread.java b/src/main/java/net/minecraft/server/rcon/thread/RconThread.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/rcon/thread/RconThread.java
++++ b/src/main/java/net/minecraft/server/rcon/thread/RconThread.java
+@@ -0,0 +0,0 @@ public class RconThread extends GenericThread {
+     @Nullable
+     public static RconThread create(ServerInterface server) {
+         DedicatedServerProperties dedicatedServerProperties = server.getProperties();
+-        String string = server.getServerIp();
++        String string = dedicatedServerProperties.rconIp; // Paper - Configurable rcon ip
+         if (string.isEmpty()) {
+             string = "0.0.0.0";
+         }

patches/server/Configurable-container-update-tick-rate.patch

@@ -0,0 +1,32 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Sudzzy <originmc@outlook.com>
+Date: Wed, 2 Mar 2016 23:34:44 -0600
+Subject: [PATCH] Configurable container update tick rate
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -0,0 +0,0 @@ public class ServerPlayer extends Player {
+     public final Object object;
+     private int containerCounter;
+     public boolean wonGame;
++    private int containerUpdateDelay; // Paper - Configurable container update tick rate
+ 
+     // CraftBukkit start
+     public CraftPlayer.TransferCookieConnection transferCookieConnection;
+@@ -0,0 +0,0 @@ public class ServerPlayer extends Player {
+             --this.invulnerableTime;
+         }
+ 
+-        this.containerMenu.broadcastChanges();
++        // Paper start - Configurable container update tick rate
++        if (--containerUpdateDelay <= 0) {
++            this.containerMenu.broadcastChanges();
++            containerUpdateDelay = this.level().paperConfig().tickRates.containerUpdate;
++        }
++        // Paper end - Configurable container update tick rate
+         if (!this.level().isClientSide && !this.containerMenu.stillValid(this)) {
+             this.closeContainer();
+             this.containerMenu = this.inventoryMenu;

patches/server/Configurable-flying-kick-messages.patch

@@ -0,0 +1,28 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <rileysebastianpark@gmail.com>
+Date: Tue, 20 Sep 2016 00:58:01 +0000
+Subject: [PATCH] Configurable flying kick messages
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+         if (this.clientIsFloating && !this.player.isSleeping() && !this.player.isPassenger() && !this.player.isDeadOrDying()) {
+             if (++this.aboveGroundTickCount > this.getMaximumFlyingTicks(this.player)) {
+                 ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked for floating too long!", this.player.getName().getString());
+-                this.disconnect(Component.translatable("multiplayer.disconnect.flying"));
++                this.disconnect(io.papermc.paper.configuration.GlobalConfiguration.get().messages.kick.flyingPlayer); // Paper - use configurable kick message
+                 return;
+             }
+         } else {
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+             if (this.clientVehicleIsFloating && this.lastVehicle.getControllingPassenger() == this.player) {
+                 if (++this.aboveGroundVehicleTickCount > this.getMaximumFlyingTicks(this.lastVehicle)) {
+                     ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked for floating a vehicle too long!", this.player.getName().getString());
+-                    this.disconnect(Component.translatable("multiplayer.disconnect.flying"));
++                    this.disconnect(io.papermc.paper.configuration.GlobalConfiguration.get().messages.kick.flyingVehicle); // Paper - use configurable kick message
+                     return;
+                 }
+             } else {

patches/server/Configurable-inter-world-teleportation-safety.patch

@@ -0,0 +1,30 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Sudzzy <originmc@outlook.com>
+Date: Thu, 3 Mar 2016 02:50:31 -0600
+Subject: [PATCH] Configurable inter-world teleportation safety
+
+People are able to abuse the way Bukkit handles teleportation across worlds since it provides a built in teleportation
+safety check.
+
+To abuse the safety check, players are required to get into a location deemed unsafe by Bukkit e.g. be within a chest
+or door block. While they are in this block, they accept a teleport request from a player within a different world. Once
+the player teleports, Minecraft will recursively search upwards for a safe location, this could eventually land within a
+player's skybase.
+
+Example setup to perform the glitch: http://puu.sh/ng3PC/cf072dcbdb.png
+The wanted destination was on top of the emerald block however the player ended on top of the diamond block.
+This only is the case if the player is teleporting between worlds.
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -0,0 +0,0 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+             entity.connection.teleport(to);
+         } else {
+             // The respawn reason should never be used if the passed location is non null.
+-            this.server.getHandle().respawn(entity, toWorld, true, to, true, null);
++            this.server.getHandle().respawn(entity, toWorld, true, to, !toWorld.paperConfig().environment.disableTeleportationSuffocationCheck, null); // Paper
+         }
+         return true;
+     }

patches/server/Configurable-packet-in-spam-threshold.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Sun, 11 Sep 2016 14:30:57 -0500
+Subject: [PATCH] Configurable packet in spam threshold
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+     // Spigot start - limit place/interactions
+     private int limitedPackets;
+     private long lastLimitedPacket = -1;
++    private static int getSpamThreshold() { return io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.incomingPacketThreshold; } // Paper - Configurable threshold
+ 
+     private boolean checkLimit(long timestamp) {
+-        if (this.lastLimitedPacket != -1 && timestamp - this.lastLimitedPacket < 30 && this.limitedPackets++ >= 4) {
++        if (this.lastLimitedPacket != -1 && timestamp - this.lastLimitedPacket < getSpamThreshold() && this.limitedPackets++ >= 8) { // Paper - Configurable threshold; raise packet limit to 8
+             return false;
+         }
+ 
+-        if (this.lastLimitedPacket == -1 || timestamp - this.lastLimitedPacket >= 30) {
++        if (this.lastLimitedPacket == -1 || timestamp - this.lastLimitedPacket >= getSpamThreshold()) { // Paper - Configurable threshold
+             this.lastLimitedPacket = timestamp;
+             this.limitedPackets = 0;
+             return true;

patches/server/Configurable-random-tick-rates-for-blocks.patch

@@ -0,0 +1,35 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sun, 3 Apr 2016 16:28:17 -0400
+Subject: [PATCH] Configurable random tick rates for blocks
+
+A general purpose patch that includes config options for the tick rate
+of a variety of blocks that are random ticked.
+
+Co-authored-by: MrPowerGamerBR <git@mrpowergamerbr.com>
+
+diff --git a/src/main/java/net/minecraft/world/level/block/FarmBlock.java b/src/main/java/net/minecraft/world/level/block/FarmBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/FarmBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/FarmBlock.java
+@@ -0,0 +0,0 @@ public class FarmBlock extends Block {
+     @Override
+     protected void randomTick(BlockState state, ServerLevel world, BlockPos pos, RandomSource random) {
+         int i = (Integer) state.getValue(FarmBlock.MOISTURE);
++        if (i > 0 && world.paperConfig().tickRates.wetFarmland != 1 && (world.paperConfig().tickRates.wetFarmland < 1 || (net.minecraft.server.MinecraftServer.currentTick + pos.hashCode()) % world.paperConfig().tickRates.wetFarmland != 0)) { return; } // Paper - Configurable random tick rates for blocks
++        if (i == 0 && world.paperConfig().tickRates.dryFarmland != 1 && (world.paperConfig().tickRates.dryFarmland < 1 || (net.minecraft.server.MinecraftServer.currentTick + pos.hashCode()) % world.paperConfig().tickRates.dryFarmland != 0)) { return; } // Paper - Configurable random tick rates for blocks
+ 
+         if (!FarmBlock.isNearWater(world, pos) && !world.isRainingAt(pos.above())) {
+             if (i > 0) {
+diff --git a/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java b/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java
+@@ -0,0 +0,0 @@ public abstract class SpreadingSnowyDirtBlock extends SnowyDirtBlock {
+ 
+     @Override
+     protected void randomTick(BlockState state, ServerLevel world, BlockPos pos, RandomSource random) {
++        if (this instanceof GrassBlock && world.paperConfig().tickRates.grassSpread != 1 && (world.paperConfig().tickRates.grassSpread < 1 || (net.minecraft.server.MinecraftServer.currentTick + pos.hashCode()) % world.paperConfig().tickRates.grassSpread != 0)) { return; } // Paper - Configurable random tick rates for blocks
+         if (!SpreadingSnowyDirtBlock.canBeGrass(state, world, pos)) {
+             // CraftBukkit start
+             if (org.bukkit.craftbukkit.event.CraftEventFactory.callBlockFadeEvent(world, pos, Blocks.DIRT.defaultBlockState()).isCancelled()) {

patches/server/Configurable-spawn-chances-for-skeleton-horses.patch

@@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Tue, 22 Mar 2016 12:04:28 -0500
+Subject: [PATCH] Configurable spawn chances for skeleton horses
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements WorldGenLevel {
+ 
+             if (this.isRainingAt(blockposition)) {
+                 DifficultyInstance difficultydamagescaler = this.getCurrentDifficultyAt(blockposition);
+-                boolean flag1 = this.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING) && this.random.nextDouble() < (double) difficultydamagescaler.getEffectiveDifficulty() * 0.01D && !this.getBlockState(blockposition.below()).is(Blocks.LIGHTNING_ROD);
++                boolean flag1 = this.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING) && this.random.nextDouble() < (double) difficultydamagescaler.getEffectiveDifficulty() * this.paperConfig().entities.spawning.skeletonHorseThunderSpawnChance.or(0.01D) && !this.getBlockState(blockposition.below()).is(Blocks.LIGHTNING_ROD); // Paper - Configurable spawn chances for skeleton horses
+ 
+                 if (flag1) {
+                     SkeletonHorse entityhorseskeleton = (SkeletonHorse) EntityType.SKELETON_HORSE.create(this);

patches/server/Custom-replacement-for-eaten-items.patch

@@ -0,0 +1,48 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jedediah Smith <jedediah@silencegreys.com>
+Date: Sun, 21 Jun 2015 15:07:20 -0400
+Subject: [PATCH] Custom replacement for eaten items
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+                     this.triggerItemUseEffects(this.useItem, 16);
+                     // CraftBukkit start - fire PlayerItemConsumeEvent
+                     ItemStack itemstack;
++                    PlayerItemConsumeEvent event = null; // Paper
+                     if (this instanceof ServerPlayer) {
+                         org.bukkit.inventory.ItemStack craftItem = CraftItemStack.asBukkitCopy(this.useItem);
+                         org.bukkit.inventory.EquipmentSlot hand = org.bukkit.craftbukkit.CraftEquipmentSlot.getHand(enumhand);
+-                        PlayerItemConsumeEvent event = new PlayerItemConsumeEvent((Player) this.getBukkitEntity(), craftItem, hand);
++                        event = new PlayerItemConsumeEvent((Player) this.getBukkitEntity(), craftItem, hand); // Paper
+                         this.level().getCraftServer().getPluginManager().callEvent(event);
+ 
+                         if (event.isCancelled()) {
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+                     } else {
+                         itemstack = this.useItem.finishUsingItem(this.level(), this);
+                     }
++                    // Paper start - save the default replacement item and change it if necessary
++                    final ItemStack defaultReplacement = itemstack;
++                    if (event != null && event.getReplacement() != null) {
++                        itemstack = CraftItemStack.asNMSCopy(event.getReplacement());
++                    }
++                    // Paper end
+                     // CraftBukkit end
+ 
+                     if (itemstack != this.useItem) {
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+                     }
+ 
+                     this.stopUsingItem();
++                    // Paper start - if the replacement is anything but the default, update the client inventory
++                    if (this instanceof ServerPlayer && !com.google.common.base.Objects.equal(defaultReplacement, itemstack)) {
++                        ((ServerPlayer) this).getBukkitEntity().updateInventory();
++                    }
++                    // Paper end
+                 }
+ 
+             }

patches/server/Default-loading-permissions.yml-before-plugins.patch

@@ -0,0 +1,38 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 18 Mar 2016 13:17:38 -0400
+Subject: [PATCH] Default loading permissions.yml before plugins
+
+Under previous behavior, plugins were not able to check if a player had a permission
+if it was defined in permissions.yml. there is no clean way for a plugin to fix that either.
+
+This will change the order so that by default, permissions.yml loads BEFORE plugins instead of after.
+
+This gives plugins expected permission checks.
+
+It also helps improve the expected logic, as servers should set the initial defaults, and then let plugins
+modify that. Under the previous logic, plugins were unable (cleanly) override permissions.yml.
+
+A config option has been added for those who depend on the previous behavior, but I don't expect that.
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+         if (type == PluginLoadOrder.STARTUP) {
+             this.helpMap.clear();
+             this.helpMap.initializeGeneralTopics();
++            if (io.papermc.paper.configuration.GlobalConfiguration.get().misc.loadPermissionsYmlBeforePlugins) loadCustomPermissions(); // Paper
+         }
+ 
+         Plugin[] plugins = this.pluginManager.getPlugins();
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+             this.commandMap.registerServerAliases();
+             DefaultPermissions.registerCorePermissions();
+             CraftDefaultPermissions.registerCorePermissions();
+-            this.loadCustomPermissions();
++            if (!io.papermc.paper.configuration.GlobalConfiguration.get().misc.loadPermissionsYmlBeforePlugins) this.loadCustomPermissions(); // Paper
+             this.helpMap.initializeCommands();
+             this.syncCommands();
+         }

patches/server/Disable-Scoreboards-for-non-players-by-default.patch

@@ -0,0 +1,36 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Tue, 8 Mar 2016 23:25:45 -0500
+Subject: [PATCH] Disable Scoreboards for non players by default
+
+Entities collision is checking for scoreboards setting.
+This is very heavy to do map lookups for every collision to check
+this setting.
+
+So avoid looking up scoreboards and short circuit to the "not on a team"
+logic which is most likely to be true.
+
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+ 
+     @Nullable
+     public PlayerTeam getTeam() {
++        if (!this.level().paperConfig().scoreboards.allowNonPlayerEntitiesOnScoreboards && !(this instanceof Player)) { return null; } // Paper - Perf: Disable Scoreboards for non players by default
+         return this.level().getScoreboard().getPlayersTeam(this.getScoreboardName());
+     }
+ 
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+             String s = nbt.getString("Team");
+             Scoreboard scoreboard = this.level().getScoreboard();
+             PlayerTeam scoreboardteam = scoreboard.getPlayerTeam(s);
++            if (!this.level().paperConfig().scoreboards.allowNonPlayerEntitiesOnScoreboards && !(this instanceof net.minecraft.world.entity.player.Player)) { scoreboardteam = null; } // Paper - Perf: Disable Scoreboards for non players by default
+             boolean flag = scoreboardteam != null && scoreboard.addPlayerToTeam(this.getStringUUID(), scoreboardteam);
+ 
+             if (!flag) {

patches/server/Disable-spigot-tick-limiters.patch

@@ -0,0 +1,21 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Wed, 2 Mar 2016 23:45:17 -0600
+Subject: [PATCH] Disable spigot tick limiters
+
+
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+         boolean flag = this.tickRateManager().runsNormally();
+ 
+         int tilesThisCycle = 0;
+-        for (this.tileLimiter.initTick();
+-                tilesThisCycle < this.blockEntityTickers.size() && (tilesThisCycle % 10 != 0 || this.tileLimiter.shouldContinue());
+-                this.tileTickPosition++, tilesThisCycle++) {
++        for (tileTickPosition = 0; tileTickPosition < this.blockEntityTickers.size(); tileTickPosition++) { // Paper - Disable tick limiters
+             this.tileTickPosition = (this.tileTickPosition < this.blockEntityTickers.size()) ? this.tileTickPosition : 0;
+             TickingBlockEntity tickingblockentity = (TickingBlockEntity) this.blockEntityTickers.get(this.tileTickPosition);
+             // Spigot end

patches/server/Do-not-load-chunks-for-Pathfinding.patch

@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Thu, 31 Mar 2016 19:17:58 -0400
+Subject: [PATCH] Do not load chunks for Pathfinding
+
+
+diff --git a/src/main/java/net/minecraft/world/level/pathfinder/WalkNodeEvaluator.java b/src/main/java/net/minecraft/world/level/pathfinder/WalkNodeEvaluator.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/pathfinder/WalkNodeEvaluator.java
++++ b/src/main/java/net/minecraft/world/level/pathfinder/WalkNodeEvaluator.java
+@@ -0,0 +0,0 @@ public class WalkNodeEvaluator extends NodeEvaluator {
+     }
+ 
+     protected static PathType getPathTypeFromState(BlockGetter world, BlockPos pos) {
+-        BlockState blockState = world.getBlockState(pos);
++        // Paper start - Do not load chunks during pathfinding
++        BlockState blockState = world.getBlockStateIfLoaded(pos);
++        if (blockState == null) {
++            return BlockPathTypes.BLOCKED;
++        }
++        // Paper end
+         Block block = blockState.getBlock();
+         if (blockState.isAir()) {
+             return PathType.OPEN;

patches/server/Do-not-submit-profile-lookups-to-worldgen-threads.patch

@@ -0,0 +1,77 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 8 Aug 2021 16:26:46 -0700
+Subject: [PATCH] Do not submit profile lookups to worldgen threads
+
+They block. On network I/O.
+
+If enough tasks are submitted the server will eventually stall
+out due to a sync load, as the worldgen threads will be
+stalling on profile lookups.
+
+diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/Util.java
++++ b/src/main/java/net/minecraft/Util.java
+@@ -0,0 +0,0 @@ public class Util {
+     private static final ExecutorService BACKGROUND_EXECUTOR = makeExecutor("Main");
+     private static final ExecutorService IO_POOL = makeIoExecutor("IO-Worker-", false);
+     private static final ExecutorService DOWNLOAD_POOL = makeIoExecutor("Download-", true);
++    // Paper start - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
++    public static final ExecutorService PROFILE_EXECUTOR = Executors.newFixedThreadPool(2, new java.util.concurrent.ThreadFactory() {
++
++        private final AtomicInteger count = new AtomicInteger();
++
++        @Override
++        public Thread newThread(Runnable run) {
++            Thread ret = new Thread(run);
++            ret.setName("Profile Lookup Executor #" + this.count.getAndIncrement());
++            ret.setUncaughtExceptionHandler((Thread thread, Throwable throwable) -> {
++                LOGGER.error("Uncaught exception in thread " + thread.getName(), throwable);
++            });
++            return ret;
++        }
++    });
++    // Paper end - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
+     private static final DateTimeFormatter FILENAME_DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss", Locale.ROOT);
+     public static final int LINEAR_LOOKUP_THRESHOLD = 8;
+     public static final long NANOS_PER_MILLI = 1000000L;
+diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/GameProfileCache.java
++++ b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+             } else {
+                 CompletableFuture<Optional<GameProfile>> completablefuture1 = CompletableFuture.supplyAsync(() -> {
+                     return this.get(username);
+-                }, Util.backgroundExecutor()).whenCompleteAsync((optional, throwable) -> {
++                }, Util.PROFILE_EXECUTOR).whenCompleteAsync((optional, throwable) -> { // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
+                     this.requests.remove(username);
+                 }, this.executor);
+ 
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
+@@ -0,0 +0,0 @@ public class SkullBlockEntity extends BlockEntity {
+                 ProfileResult profileResult = apiServices.sessionService().fetchProfile(uuid, true);
+                 return Optional.ofNullable(profileResult).map(ProfileResult::profile);
+             }
+-        }, Util.backgroundExecutor());
++        }, Util.PROFILE_EXECUTOR); // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
+     }
+ 
+     public static void clear() {
+diff --git a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
++++ b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
+@@ -0,0 +0,0 @@ public final class CraftPlayerProfile implements PlayerProfile {
+ 
+     @Override
+     public CompletableFuture<PlayerProfile> update() {
+-        return CompletableFuture.supplyAsync(this::getUpdatedProfile, Util.backgroundExecutor());
++        return CompletableFuture.supplyAsync(this::getUpdatedProfile, Util.PROFILE_EXECUTOR); // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
+     }
+ 
+     private CraftPlayerProfile getUpdatedProfile() {

patches/server/Don-t-lookup-game-profiles-that-have-no-UUID-and-no-.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Sat, 16 Jul 2016 19:11:17 -0500
+Subject: [PATCH] Don't lookup game profiles that have no UUID and no name
+
+
+diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/GameProfileCache.java
++++ b/src/main/java/net/minecraft/server/players/GameProfileCache.java
+@@ -0,0 +0,0 @@ public class GameProfileCache {
+                 }
+             };
+ 
++        if (!org.apache.commons.lang3.StringUtils.isBlank(name)) // Paper - Don't lookup a profile with a blank name
+             repository.findProfilesByNames(new String[]{name}, profilelookupcallback);
+             GameProfile gameprofile = (GameProfile) atomicreference.get();
+ 

patches/server/Don-t-save-empty-scoreboard-teams-to-scoreboard.dat.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sat, 7 May 2016 23:33:08 -0400
+Subject: [PATCH] Don't save empty scoreboard teams to scoreboard.dat
+
+
+diff --git a/src/main/java/net/minecraft/world/scores/ScoreboardSaveData.java b/src/main/java/net/minecraft/world/scores/ScoreboardSaveData.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/scores/ScoreboardSaveData.java
++++ b/src/main/java/net/minecraft/world/scores/ScoreboardSaveData.java
+@@ -0,0 +0,0 @@ public class ScoreboardSaveData extends SavedData {
+         ListTag listTag = new ListTag();
+ 
+         for (PlayerTeam playerTeam : this.scoreboard.getPlayerTeams()) {
++            if (!io.papermc.paper.configuration.GlobalConfiguration.get().scoreboards.saveEmptyScoreboardTeams && playerTeam.getPlayers().isEmpty()) continue; // Paper - Don't save empty scoreboard teams to scoreboard.dat
+             CompoundTag compoundTag = new CompoundTag();
+             compoundTag.putString("Name", playerTeam.getName());
+             compoundTag.putString("DisplayName", Component.Serializer.toJson(playerTeam.getDisplayName(), registries));

patches/server/Enforce-Sync-Player-Saves.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sat, 7 Jan 2017 15:41:58 -0500
+Subject: [PATCH] Enforce Sync Player Saves
+
+Saving players async is extremely dangerous. This will force it to main
+the same way we handle async chunk loads.
+
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
++++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+     }
+ 
+     public void saveAll() {
++        io.papermc.paper.util.MCUtil.ensureMain("Save Players" , () -> { // Paper - Ensure main
+         MinecraftTimings.savePlayers.startTiming(); // Paper
+         for (int i = 0; i < this.players.size(); ++i) {
+-            this.save((ServerPlayer) this.players.get(i));
++            this.save(this.players.get(i));
+         }
+         MinecraftTimings.savePlayers.stopTiming(); // Paper
++        return null; }); // Paper - ensure main
+     }
+ 
+     public UserWhiteList getWhiteList() {

patches/server/Entity-AddTo-RemoveFrom-World-Events.patch

@@ -0,0 +1,26 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 28 Mar 2016 20:32:58 -0400
+Subject: [PATCH] Entity AddTo/RemoveFrom World Events
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements WorldGenLevel {
+                 entity.setOrigin(entity.getOriginVector().toLocation(getWorld()));
+             }
+             // Paper end - Entity origin API
++            new com.destroystokyo.paper.event.entity.EntityAddToWorldEvent(entity.getBukkitEntity(), ServerLevel.this.getWorld()).callEvent(); // Paper - fire while valid
+         }
+ 
+         public void onTrackingEnd(Entity entity) {
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements WorldGenLevel {
+                 }
+             }
+             // CraftBukkit end
++            new com.destroystokyo.paper.event.entity.EntityRemoveFromWorldEvent(entity.getBukkitEntity(), ServerLevel.this.getWorld()).callEvent(); // Paper - fire while valid
+         }
+ 
+         public void onSectionChange(Entity entity) {

patches/server/Entity-fromMobSpawner.patch

@@ -0,0 +1,66 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: BillyGalbreath <Blake.Galbreath@GMail.com>
+Date: Sun, 18 Jun 2017 18:17:05 -0500
+Subject: [PATCH] Entity#fromMobSpawner()
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+     public void inactiveTick() { }
+     // Spigot end
+     protected int numCollisions = 0; // Paper - Cap entity collisions
++    public boolean spawnedViaMobSpawner; // Paper - Yes this name is similar to above, upstream took the better one
+     // Paper start - Entity origin API
+     @javax.annotation.Nullable
+     private org.bukkit.util.Vector origin;
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+                 }
+                 nbttagcompound.put("Paper.Origin", this.newDoubleList(origin.getX(), origin.getY(), origin.getZ()));
+             }
++            // Save entity's from mob spawner status
++            if (spawnedViaMobSpawner) {
++                nbttagcompound.putBoolean("Paper.FromMobSpawner", true);
++            }
+             // Paper end
+             return nbttagcompound;
+         } catch (Throwable throwable) {
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+                 this.originWorld = originWorld;
+                 origin = new org.bukkit.util.Vector(originTag.getDouble(0), originTag.getDouble(1), originTag.getDouble(2));
+             }
++
++            spawnedViaMobSpawner = nbt.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
+             // Paper end
+ 
+         } catch (Throwable throwable) {
+diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
++++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
+@@ -0,0 +0,0 @@ public abstract class BaseSpawner {
+                             // Spigot End
+                         }
+ 
++                        entity.spawnedViaMobSpawner = true; // Paper
+                         // CraftBukkit start
+                         if (org.bukkit.craftbukkit.event.CraftEventFactory.callSpawnerSpawnEvent(entity, pos).isCancelled()) {
+                             continue;
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+@@ -0,0 +0,0 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
+         return originVector.toLocation(world);
+     }
+     // Paper end - entity origin API
++
++    // Paper start - Entity#fromMobSpawner
++    @Override
++    public boolean fromMobSpawner() {
++        return this.getHandle().spawnedViaMobSpawner;
++    }
++    // Paper end - Entity#fromMobSpawner
+ }

patches/server/EntityPathfindEvent.patch

@@ -0,0 +1,154 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 28 Mar 2016 21:22:26 -0400
+Subject: [PATCH] EntityPathfindEvent
+
+Fires when an Entity decides to start moving to a location.
+
+diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/FlyingPathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/FlyingPathNavigation.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/navigation/FlyingPathNavigation.java
++++ b/src/main/java/net/minecraft/world/entity/ai/navigation/FlyingPathNavigation.java
+@@ -0,0 +0,0 @@ public class FlyingPathNavigation extends PathNavigation {
+ 
+     @Override
+     public Path createPath(Entity entity, int distance) {
+-        return this.createPath(entity.blockPosition(), distance);
++        return this.createPath(entity.blockPosition(), entity, distance); // Paper - EntityPathfindEvent
+     }
+ 
+     @Override
+diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/GroundPathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/GroundPathNavigation.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/navigation/GroundPathNavigation.java
++++ b/src/main/java/net/minecraft/world/entity/ai/navigation/GroundPathNavigation.java
+@@ -0,0 +0,0 @@ public class GroundPathNavigation extends PathNavigation {
+     }
+ 
+     @Override
+-    public Path createPath(BlockPos target, int distance) {
++    public Path createPath(BlockPos target, @javax.annotation.Nullable Entity entity, int distance) { // Paper - EntityPathfindEvent
+         LevelChunk levelChunk = this.level
+             .getChunkSource()
+             .getChunkNow(SectionPos.blockToSectionCoord(target.getX()), SectionPos.blockToSectionCoord(target.getZ()));
+@@ -0,0 +0,0 @@ public class GroundPathNavigation extends PathNavigation {
+                 }
+ 
+                 if (blockPos.getY() > this.level.getMinBuildHeight()) {
+-                    return super.createPath(blockPos.above(), distance);
++                    return super.createPath(blockPos.above(), entity, distance); // Paper - EntityPathfindEvent
+                 }
+ 
+                 while (blockPos.getY() < this.level.getMaxBuildHeight() && levelChunk.getBlockState(blockPos).isAir()) {
+@@ -0,0 +0,0 @@ public class GroundPathNavigation extends PathNavigation {
+             }
+ 
+             if (!levelChunk.getBlockState(target).isSolid()) {
+-                return super.createPath(target, distance);
++                return super.createPath(target, entity, distance); // Paper - EntityPathfindEvent
+             } else {
+                 BlockPos blockPos2 = target.above();
+ 
+@@ -0,0 +0,0 @@ public class GroundPathNavigation extends PathNavigation {
+                     blockPos2 = blockPos2.above();
+                 }
+ 
+-                return super.createPath(blockPos2, distance);
++                return super.createPath(blockPos2, entity, distance); // Paper - EntityPathfindEvent
+             }
+         }
+     }
+ 
+     @Override
+     public Path createPath(Entity entity, int distance) {
+-        return this.createPath(entity.blockPosition(), distance);
++        return this.createPath(entity.blockPosition(), entity, distance); // Paper - EntityPathfindEvent
+     }
+ 
+     private int getSurfaceY() {
+diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
++++ b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
+@@ -0,0 +0,0 @@ public abstract class PathNavigation {
+ 
+     @Nullable
+     public Path createPath(BlockPos target, int distance) {
+-        return this.createPath(ImmutableSet.of(target), 8, false, distance);
++        // Paper start - EntityPathfindEvent
++        return this.createPath(target, null, distance);
++    }
++    @Nullable
++    public Path createPath(BlockPos target, @Nullable Entity entity, int distance) {
++        return this.createPath(ImmutableSet.of(target), entity, 8, false, distance);
++        // Paper end - EntityPathfindEvent
+     }
+ 
+     @Nullable
+@@ -0,0 +0,0 @@ public abstract class PathNavigation {
+ 
+     @Nullable
+     public Path createPath(Entity entity, int distance) {
+-        return this.createPath(ImmutableSet.of(entity.blockPosition()), 16, true, distance);
++        return this.createPath(ImmutableSet.of(entity.blockPosition()), entity, 16, true, distance); // Paper - EntityPathfindEvent
+     }
+ 
+     @Nullable
+@@ -0,0 +0,0 @@ public abstract class PathNavigation {
+ 
+     @Nullable
+     protected Path createPath(Set<BlockPos> positions, int range, boolean useHeadPos, int distance, float followRange) {
++        // Paper start - EntityPathfindEvent
++        return this.createPath(positions, null, range, useHeadPos, distance, followRange);
++    }
++
++    @Nullable
++    protected Path createPath(Set<BlockPos> positions, @Nullable Entity target, int range, boolean useHeadPos, int distance) {
++        return this.createPath(positions, target, range, useHeadPos, distance, (float) this.mob.getAttributeValue(Attributes.FOLLOW_RANGE));
++    }
++
++    @Nullable protected Path createPath(Set<BlockPos> positions, @Nullable Entity target, int range, boolean useHeadPos, int distance, float followRange) {
++        // Paper end - EntityPathfindEvent
+         if (positions.isEmpty()) {
+             return null;
+         } else if (this.mob.getY() < (double)this.level.getMinBuildHeight()) {
+@@ -0,0 +0,0 @@ public abstract class PathNavigation {
+         } else if (this.path != null && !this.path.isDone() && positions.contains(this.targetPos)) {
+             return this.path;
+         } else {
++            // Paper start - EntityPathfindEvent
++            boolean copiedSet = false;
++            for (BlockPos possibleTarget : positions) {
++                if (!new com.destroystokyo.paper.event.entity.EntityPathfindEvent(this.mob.getBukkitEntity(),
++                    io.papermc.paper.util.MCUtil.toLocation(this.mob.level(), possibleTarget), target == null ? null : target.getBukkitEntity()).callEvent()) {
++                    if (!copiedSet) {
++                        copiedSet = true;
++                        positions = new java.util.HashSet<>(positions);
++                    }
++                    // note: since we copy the set this remove call is safe, since we're iterating over the old copy
++                    positions.remove(possibleTarget);
++                    if (positions.isEmpty()) {
++                        return null;
++                    }
++                }
++            }
++            // Paper end - EntityPathfindEvent
+             this.level.getProfiler().push("pathfind");
+             BlockPos blockPos = useHeadPos ? this.mob.blockPosition().above() : this.mob.blockPosition();
+             int i = (int)(followRange + (float)range);
+diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/WallClimberNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/WallClimberNavigation.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/navigation/WallClimberNavigation.java
++++ b/src/main/java/net/minecraft/world/entity/ai/navigation/WallClimberNavigation.java
+@@ -0,0 +0,0 @@ public class WallClimberNavigation extends GroundPathNavigation {
+     }
+ 
+     @Override
+-    public Path createPath(BlockPos target, int distance) {
++    public Path createPath(BlockPos target, @Nullable Entity entity, int distance) { // Paper - EntityPathfindEvent
+         this.pathToPosition = target;
+-        return super.createPath(target, distance);
++        return super.createPath(target, entity, distance); // Paper - EntityPathfindEvent
+     }
+ 
+     @Override

patches/server/EntityRegainHealthEvent-isFastRegen-API.patch

@@ -0,0 +1,42 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Fri, 22 Apr 2016 01:43:11 -0500
+Subject: [PATCH] EntityRegainHealthEvent isFastRegen API
+
+Don't even get me started
+
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+     }
+ 
+     public void heal(float f, EntityRegainHealthEvent.RegainReason regainReason) {
++        // Paper start - Forward
++        heal(f, regainReason, false);
++    }
++
++    public void heal(float f, EntityRegainHealthEvent.RegainReason regainReason, boolean isFastRegen) {
++        // Paper end
+         float f1 = this.getHealth();
+ 
+         if (f1 > 0.0F) {
+-            EntityRegainHealthEvent event = new EntityRegainHealthEvent(this.getBukkitEntity(), f, regainReason);
++            EntityRegainHealthEvent event = new EntityRegainHealthEvent(this.getBukkitEntity(), f, regainReason, isFastRegen); // Paper
+             // Suppress during worldgen
+             if (this.valid) {
+                 this.level().getCraftServer().getPluginManager().callEvent(event);
+diff --git a/src/main/java/net/minecraft/world/food/FoodData.java b/src/main/java/net/minecraft/world/food/FoodData.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/food/FoodData.java
++++ b/src/main/java/net/minecraft/world/food/FoodData.java
+@@ -0,0 +0,0 @@ public class FoodData {
+             if (this.tickTimer >= this.saturatedRegenRate) { // CraftBukkit
+                 float f = Math.min(this.saturationLevel, 6.0F);
+ 
+-                player.heal(f / 6.0F, org.bukkit.event.entity.EntityRegainHealthEvent.RegainReason.SATIATED); // CraftBukkit - added RegainReason
++                player.heal(f / 6.0F, org.bukkit.event.entity.EntityRegainHealthEvent.RegainReason.SATIATED, true); // CraftBukkit - added RegainReason // Paper - This is fast regen
+                 // this.addExhaustion(f); CraftBukkit - EntityExhaustionEvent
+                 player.causeFoodExhaustion(f, org.bukkit.event.entity.EntityExhaustionEvent.ExhaustionReason.REGEN); // CraftBukkit - EntityExhaustionEvent
+                 this.tickTimer = 0;

patches/server/ExperienceOrbs-API-for-Reason-Source-Triggering-play.patch

@@ -0,0 +1,355 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Tue, 19 Dec 2017 16:31:46 -0500
+Subject: [PATCH] ExperienceOrbs API for Reason/Source/Triggering player
+
+Adds lots of information about why this orb exists.
+
+Replaces isFromBottle() with logic that persists entity reloads too.
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+@@ -0,0 +0,0 @@ public class ServerPlayerGameMode {
+ 
+                 // Drop event experience
+                 if (flag && event != null) {
+-                    iblockdata.getBlock().popExperience(this.level, pos, event.getExpToDrop());
++                    iblockdata.getBlock().popExperience(this.level, pos, event.getExpToDrop(), this.player); // Paper
+                 }
+ 
+                 return true;
+diff --git a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
++++ b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
+@@ -0,0 +0,0 @@ public class ExperienceOrb extends Entity {
+     public int value;
+     private int count;
+     private Player followingPlayer;
++    // Paper start
++    @javax.annotation.Nullable
++    public java.util.UUID sourceEntityId;
++    @javax.annotation.Nullable
++    public java.util.UUID triggerEntityId;
++    public org.bukkit.entity.ExperienceOrb.SpawnReason spawnReason = org.bukkit.entity.ExperienceOrb.SpawnReason.UNKNOWN;
++
++    private void loadPaperNBT(CompoundTag tag) {
++        if (!tag.contains("Paper.ExpData", net.minecraft.nbt.Tag.TAG_COMPOUND)) {
++            return;
++        }
++        CompoundTag comp = tag.getCompound("Paper.ExpData");
++        if (comp.hasUUID("source")) {
++            this.sourceEntityId = comp.getUUID("source");
++        }
++        if (comp.hasUUID("trigger")) {
++            this.triggerEntityId = comp.getUUID("trigger");
++        }
++        if (comp.contains("reason")) {
++            String reason = comp.getString("reason");
++            try {
++                this.spawnReason = org.bukkit.entity.ExperienceOrb.SpawnReason.valueOf(reason);
++            } catch (Exception e) {
++                this.level().getCraftServer().getLogger().warning("Invalid spawnReason set for experience orb: " + e.getMessage() + " - " + reason);
++            }
++        }
++    }
++    private void savePaperNBT(CompoundTag tag) {
++        CompoundTag comp = new CompoundTag();
++        if (this.sourceEntityId != null) {
++            comp.putUUID("source", this.sourceEntityId);
++        }
++        if (this.triggerEntityId != null) {
++            comp.putUUID("trigger", triggerEntityId);
++        }
++        if (this.spawnReason != null && this.spawnReason != org.bukkit.entity.ExperienceOrb.SpawnReason.UNKNOWN) {
++            comp.putString("reason", this.spawnReason.name());
++        }
++        tag.put("Paper.ExpData", comp);
++    }
+ 
++    @io.papermc.paper.annotation.DoNotUse
++    @Deprecated
+     public ExperienceOrb(Level world, double x, double y, double z, int amount) {
++        this(world, x, y, z, amount, null, null);
++    }
++
++    public ExperienceOrb(Level world, double x, double y, double z, int amount, @javax.annotation.Nullable org.bukkit.entity.ExperienceOrb.SpawnReason reason, @javax.annotation.Nullable Entity triggerId) {
++        this(world, x, y, z, amount, reason, triggerId, null);
++    }
++
++    public ExperienceOrb(Level world, double x, double y, double z, int amount, @javax.annotation.Nullable org.bukkit.entity.ExperienceOrb.SpawnReason reason, @javax.annotation.Nullable Entity triggerId, @javax.annotation.Nullable Entity sourceId) {
+         this(EntityType.EXPERIENCE_ORB, world);
++        this.sourceEntityId = sourceId != null ? sourceId.getUUID() : null;
++        this.triggerEntityId = triggerId != null ? triggerId.getUUID() : null;
++        this.spawnReason = reason != null ? reason : org.bukkit.entity.ExperienceOrb.SpawnReason.UNKNOWN;
++        // Paper end
+         this.setPos(x, y, z);
+         this.setYRot((float) (this.random.nextDouble() * 360.0D));
+         this.setDeltaMovement((this.random.nextDouble() * 0.20000000298023224D - 0.10000000149011612D) * 2.0D, this.random.nextDouble() * 0.2D * 2.0D, (this.random.nextDouble() * 0.20000000298023224D - 0.10000000149011612D) * 2.0D);
+@@ -0,0 +0,0 @@ public class ExperienceOrb extends Entity {
+     }
+ 
+     public static void award(ServerLevel world, Vec3 pos, int amount) {
++        // Paper start - add reasons for orbs
++        award(world, pos, amount, null, null, null);
++    }
++    public static void award(ServerLevel world, Vec3 pos, int amount, org.bukkit.entity.ExperienceOrb.SpawnReason reason, Entity triggerId) {
++        award(world, pos, amount, reason, triggerId, null);
++    }
++    public static void award(ServerLevel world, Vec3 pos, int amount, org.bukkit.entity.ExperienceOrb.SpawnReason reason, Entity triggerId, Entity sourceId) {
++        // Paper end - add reasons for orbs
+         while (amount > 0) {
+             int j = ExperienceOrb.getExperienceValue(amount);
+ 
+             amount -= j;
+             if (!ExperienceOrb.tryMergeToExisting(world, pos, j)) {
+-                world.addFreshEntity(new ExperienceOrb(world, pos.x(), pos.y(), pos.z(), j));
++                world.addFreshEntity(new ExperienceOrb(world, pos.x(), pos.y(), pos.z(), j, reason, triggerId, sourceId)); // Paper - add reason
+             }
+         }
+ 
+@@ -0,0 +0,0 @@ public class ExperienceOrb extends Entity {
+         nbt.putShort("Age", (short) this.age);
+         nbt.putShort("Value", (short) this.value);
+         nbt.putInt("Count", this.count);
++        this.savePaperNBT(nbt); // Paper
+     }
+ 
+     @Override
+@@ -0,0 +0,0 @@ public class ExperienceOrb extends Entity {
+         this.age = nbt.getShort("Age");
+         this.value = nbt.getShort("Value");
+         this.count = Math.max(nbt.getInt("Count"), 1);
++        this.loadPaperNBT(nbt); // Paper
+     }
+ 
+     @Override
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+     protected void dropExperience() {
+         // CraftBukkit start - Update getExpReward() above if the removed if() changes!
+         if (true && !(this instanceof net.minecraft.world.entity.boss.enderdragon.EnderDragon)) { // CraftBukkit - SPIGOT-2420: Special case ender dragon will drop the xp over time
+-            ExperienceOrb.award((ServerLevel) this.level(), this.position(), this.expToDrop);
++            LivingEntity attacker = this.lastHurtByPlayer != null ? this.lastHurtByPlayer : this.lastHurtByMob; // Paper
++            ExperienceOrb.award((ServerLevel) this.level(), this.position(), this.expToDrop, this instanceof ServerPlayer ? org.bukkit.entity.ExperienceOrb.SpawnReason.PLAYER_DEATH : org.bukkit.entity.ExperienceOrb.SpawnReason.ENTITY_DEATH, attacker, this); // Paper
+             this.expToDrop = 0;
+         }
+         // CraftBukkit end
+diff --git a/src/main/java/net/minecraft/world/entity/animal/Animal.java b/src/main/java/net/minecraft/world/entity/animal/Animal.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/animal/Animal.java
++++ b/src/main/java/net/minecraft/world/entity/animal/Animal.java
+@@ -0,0 +0,0 @@ public abstract class Animal extends AgeableMob {
+ 
+     public void finalizeSpawnChildFromBreeding(ServerLevel worldserver, Animal entityanimal, @Nullable AgeableMob entityageable, int experience) {
+         // CraftBukkit end
+-        Optional.ofNullable(this.getLoveCause()).or(() -> {
+-            return Optional.ofNullable(entityanimal.getLoveCause());
+-        }).ifPresent((entityplayer) -> {
++        // Paper start
++        ServerPlayer entityplayer = this.getLoveCause();
++        if (entityplayer == null) entityplayer = entityanimal.getLoveCause();
++        if (entityplayer != null) {
++            // Paper end
+             entityplayer.awardStat(Stats.ANIMALS_BRED);
+             CriteriaTriggers.BRED_ANIMALS.trigger(entityplayer, this, entityanimal, entityageable);
+-        });
++        } // Paper
+         this.setAge(6000);
+         entityanimal.setAge(6000);
+         this.resetLove();
+@@ -0,0 +0,0 @@ public abstract class Animal extends AgeableMob {
+         if (worldserver.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
+             // CraftBukkit start - use event experience
+             if (experience > 0) {
+-                worldserver.addFreshEntity(new ExperienceOrb(worldserver, this.getX(), this.getY(), this.getZ(), experience));
++                worldserver.addFreshEntity(new ExperienceOrb(worldserver, this.getX(), this.getY(), this.getZ(), experience, org.bukkit.entity.ExperienceOrb.SpawnReason.BREED, entityplayer, entityageable)); // Paper
+             }
+             // CraftBukkit end
+         }
+diff --git a/src/main/java/net/minecraft/world/entity/animal/Fox.java b/src/main/java/net/minecraft/world/entity/animal/Fox.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/animal/Fox.java
++++ b/src/main/java/net/minecraft/world/entity/animal/Fox.java
+@@ -0,0 +0,0 @@ public class Fox extends Animal implements VariantHolder<Fox.Type> {
+                 if (this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
+                     // CraftBukkit start - use event experience
+                     if (experience > 0) {
+-                        this.level.addFreshEntity(new ExperienceOrb(this.level, this.animal.getX(), this.animal.getY(), this.animal.getZ(), experience));
++                        this.level.addFreshEntity(new ExperienceOrb(this.level, this.animal.getX(), this.animal.getY(), this.animal.getZ(), experience, org.bukkit.entity.ExperienceOrb.SpawnReason.BREED, entityplayer, entityfox)); // Paper
+                     }
+                     // CraftBukkit end
+                 }
+diff --git a/src/main/java/net/minecraft/world/entity/animal/Turtle.java b/src/main/java/net/minecraft/world/entity/animal/Turtle.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/animal/Turtle.java
++++ b/src/main/java/net/minecraft/world/entity/animal/Turtle.java
+@@ -0,0 +0,0 @@ public class Turtle extends Animal {
+             RandomSource randomsource = this.animal.getRandom();
+ 
+             if (this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
+-                this.level.addFreshEntity(new ExperienceOrb(this.level, this.animal.getX(), this.animal.getY(), this.animal.getZ(), randomsource.nextInt(7) + 1));
++                this.level.addFreshEntity(new ExperienceOrb(this.level, this.animal.getX(), this.animal.getY(), this.animal.getZ(), randomsource.nextInt(7) + 1, org.bukkit.entity.ExperienceOrb.SpawnReason.BREED, entityplayer)); // Paper;
+             }
+ 
+         }
+diff --git a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
++++ b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
+@@ -0,0 +0,0 @@ public class EnderDragon extends Mob implements Enemy {
+ 
+         if (this.level() instanceof ServerLevel) {
+             if (this.dragonDeathTime > 150 && this.dragonDeathTime % 5 == 0 && true) {  // CraftBukkit - SPIGOT-2420: Already checked for the game rule when calculating the xp
+-                ExperienceOrb.award((ServerLevel) this.level(), this.position(), Mth.floor((float) short0 * 0.08F));
++                ExperienceOrb.award((ServerLevel) this.level(), this.position(), Mth.floor((float) short0 * 0.08F), org.bukkit.entity.ExperienceOrb.SpawnReason.ENTITY_DEATH, this.lastHurtByPlayer, this); // Paper
+             }
+ 
+             if (this.dragonDeathTime == 1 && !this.isSilent()) {
+@@ -0,0 +0,0 @@ public class EnderDragon extends Mob implements Enemy {
+         this.move(MoverType.SELF, new Vec3(0.0D, 0.10000000149011612D, 0.0D));
+         if (this.dragonDeathTime == 200 && this.level() instanceof ServerLevel) {
+             if (true) { // CraftBukkit - SPIGOT-2420: Already checked for the game rule when calculating the xp
+-                ExperienceOrb.award((ServerLevel) this.level(), this.position(), Mth.floor((float) short0 * 0.2F));
++                ExperienceOrb.award((ServerLevel) this.level(), this.position(), Mth.floor((float) short0 * 0.2F), org.bukkit.entity.ExperienceOrb.SpawnReason.ENTITY_DEATH, this.lastHurtByPlayer, this); // Paper
+             }
+ 
+             if (this.dragonFight != null) {
+diff --git a/src/main/java/net/minecraft/world/entity/npc/Villager.java b/src/main/java/net/minecraft/world/entity/npc/Villager.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
++++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
+@@ -0,0 +0,0 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
+         }
+ 
+         if (offer.shouldRewardExp()) {
+-            this.level().addFreshEntity(new ExperienceOrb(this.level(), this.getX(), this.getY() + 0.5D, this.getZ(), i));
++            this.level().addFreshEntity(new ExperienceOrb(this.level(), this.getX(), this.getY() + 0.5D, this.getZ(), i, org.bukkit.entity.ExperienceOrb.SpawnReason.VILLAGER_TRADE, this.getTradingPlayer(), this)); // Paper
+         }
+ 
+     }
+diff --git a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
++++ b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
+@@ -0,0 +0,0 @@ public class WanderingTrader extends net.minecraft.world.entity.npc.AbstractVill
+         if (offer.shouldRewardExp()) {
+             int i = 3 + this.random.nextInt(4);
+ 
+-            this.level().addFreshEntity(new ExperienceOrb(this.level(), this.getX(), this.getY() + 0.5D, this.getZ(), i));
++            this.level().addFreshEntity(new ExperienceOrb(this.level(), this.getX(), this.getY() + 0.5D, this.getZ(), i, org.bukkit.entity.ExperienceOrb.SpawnReason.VILLAGER_TRADE, this.getTradingPlayer(), this)); // Paper
+         }
+ 
+     }
+diff --git a/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java b/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
++++ b/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
+@@ -0,0 +0,0 @@ public class FishingHook extends Projectile {
+                     this.level().addFreshEntity(entityitem);
+                     // CraftBukkit start - this.random.nextInt(6) + 1 -> playerFishEvent.getExpToDrop()
+                     if (playerFishEvent.getExpToDrop() > 0) {
+-                        entityhuman.level().addFreshEntity(new ExperienceOrb(entityhuman.level(), entityhuman.getX(), entityhuman.getY() + 0.5D, entityhuman.getZ() + 0.5D, playerFishEvent.getExpToDrop()));
++                        entityhuman.level().addFreshEntity(new ExperienceOrb(entityhuman.level(), entityhuman.getX(), entityhuman.getY() + 0.5D, entityhuman.getZ() + 0.5D, playerFishEvent.getExpToDrop(), org.bukkit.entity.ExperienceOrb.SpawnReason.FISHING, this.getPlayerOwner(), this)); // Paper
+                     }
+                     // CraftBukkit end
+                     if (itemstack1.is(ItemTags.FISHES)) {
+diff --git a/src/main/java/net/minecraft/world/entity/projectile/ThrownExperienceBottle.java b/src/main/java/net/minecraft/world/entity/projectile/ThrownExperienceBottle.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/projectile/ThrownExperienceBottle.java
++++ b/src/main/java/net/minecraft/world/entity/projectile/ThrownExperienceBottle.java
+@@ -0,0 +0,0 @@ public class ThrownExperienceBottle extends ThrowableItemProjectile {
+             }
+             // CraftBukkit end
+ 
+-            ExperienceOrb.award((ServerLevel) this.level(), this.position(), i);
++            ExperienceOrb.award((ServerLevel) this.level(), this.position(), i, org.bukkit.entity.ExperienceOrb.SpawnReason.EXP_BOTTLE, this.getOwner(), this); // Paper
+             this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+diff --git a/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java b/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
++++ b/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
+@@ -0,0 +0,0 @@ public class GrindstoneMenu extends AbstractContainerMenu {
+             public void onTake(net.minecraft.world.entity.player.Player player, ItemStack stack) {
+                 context.execute((world, blockposition) -> {
+                     if (world instanceof ServerLevel) {
+-                        ExperienceOrb.award((ServerLevel) world, Vec3.atCenterOf(blockposition), this.getExperienceAmount(world));
++                        ExperienceOrb.award((ServerLevel) world, Vec3.atCenterOf(blockposition), this.getExperienceAmount(world), org.bukkit.entity.ExperienceOrb.SpawnReason.GRINDSTONE, player); // Paper
+                     }
+ 
+                     world.levelEvent(1042, blockposition, 0);
+diff --git a/src/main/java/net/minecraft/world/level/block/Block.java b/src/main/java/net/minecraft/world/level/block/Block.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/Block.java
++++ b/src/main/java/net/minecraft/world/level/block/Block.java
+@@ -0,0 +0,0 @@ public class Block extends BlockBehaviour implements ItemLike {
+     }
+ 
+     public void popExperience(ServerLevel world, BlockPos pos, int size) {
++        // Paper start - add entity parameter
++        popExperience(world, pos, size, null);
++    }
++    public void popExperience(ServerLevel world, BlockPos pos, int size, net.minecraft.world.entity.Entity entity) {
++        // Paper end - add entity parameter
+         if (world.getGameRules().getBoolean(GameRules.RULE_DOBLOCKDROPS)) {
+-            ExperienceOrb.award(world, Vec3.atCenterOf(pos), size);
++            ExperienceOrb.award(world, Vec3.atCenterOf(pos), size, org.bukkit.entity.ExperienceOrb.SpawnReason.BLOCK_BREAK, entity); // Paper
+         }
+ 
+     }
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
+@@ -0,0 +0,0 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
+         j = event.getExpToDrop();
+         // CraftBukkit end
+ 
+-        ExperienceOrb.award(worldserver, vec3d, j);
++        ExperienceOrb.award(worldserver, vec3d, j, org.bukkit.entity.ExperienceOrb.SpawnReason.FURNACE, entityhuman); // Paper
+     }
+ 
+     @Override
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntityTypes.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntityTypes.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntityTypes.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntityTypes.java
+@@ -0,0 +0,0 @@ public final class CraftEntityTypes {
+             return item;
+         }));
+         register(new EntityTypeData<>(EntityType.EXPERIENCE_ORB, ExperienceOrb.class, CraftExperienceOrb::new,
+-                spawnData -> new net.minecraft.world.entity.ExperienceOrb(spawnData.minecraftWorld(), spawnData.x(), spawnData.y(), spawnData.z(), 0)
++                spawnData -> new net.minecraft.world.entity.ExperienceOrb(spawnData.minecraftWorld(), spawnData.x(), spawnData.y(), spawnData.z(), 0, org.bukkit.entity.ExperienceOrb.SpawnReason.CUSTOM, null, null) // Paper
+         ));
+         register(new EntityTypeData<>(EntityType.AREA_EFFECT_CLOUD, AreaEffectCloud.class, CraftAreaEffectCloud::new, spawnData -> new net.minecraft.world.entity.AreaEffectCloud(spawnData.minecraftWorld(), spawnData.x(), spawnData.y(), spawnData.z())));
+         register(new EntityTypeData<>(EntityType.EGG, Egg.class, CraftEgg::new, spawnData -> new ThrownEgg(spawnData.minecraftWorld(), spawnData.x(), spawnData.y(), spawnData.z())));
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftExperienceOrb.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftExperienceOrb.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftExperienceOrb.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftExperienceOrb.java
+@@ -0,0 +0,0 @@ public class CraftExperienceOrb extends CraftEntity implements ExperienceOrb {
+         this.getHandle().value = value;
+     }
+ 
++    // Paper start
++    public java.util.UUID getTriggerEntityId() {
++        return getHandle().triggerEntityId;
++    }
++    public java.util.UUID getSourceEntityId() {
++        return getHandle().sourceEntityId;
++    }
++    public SpawnReason getSpawnReason() {
++        return getHandle().spawnReason;
++    }
++    // Paper end
++
+     @Override
+     public net.minecraft.world.entity.ExperienceOrb getHandle() {
+         return (net.minecraft.world.entity.ExperienceOrb) this.entity;

patches/server/Expose-client-protocol-version-and-virtual-host.patch

@@ -0,0 +1,116 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Minecrell <minecrell@minecrell.net>
+Date: Tue, 10 Oct 2017 18:45:20 +0200
+Subject: [PATCH] Expose client protocol version and virtual host
+
+
+diff --git a/src/main/java/com/destroystokyo/paper/network/PaperNetworkClient.java b/src/main/java/com/destroystokyo/paper/network/PaperNetworkClient.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/network/PaperNetworkClient.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.network;
++
++import java.net.InetSocketAddress;
++
++import javax.annotation.Nullable;
++import net.minecraft.network.Connection;
++
++public class PaperNetworkClient implements NetworkClient {
++
++    private final Connection networkManager;
++
++    PaperNetworkClient(Connection networkManager) {
++        this.networkManager = networkManager;
++    }
++
++    @Override
++    public InetSocketAddress getAddress() {
++        return (InetSocketAddress) this.networkManager.getRemoteAddress();
++    }
++
++    @Override
++    public int getProtocolVersion() {
++        return this.networkManager.protocolVersion;
++    }
++
++    @Nullable
++    @Override
++    public InetSocketAddress getVirtualHost() {
++        return this.networkManager.virtualHost;
++    }
++
++    public static InetSocketAddress prepareVirtualHost(String host, int port) {
++        int len = host.length();
++
++        // FML appends a marker to the host to recognize FML clients (\0FML\0)
++        int pos = host.indexOf('\0');
++        if (pos >= 0) {
++            len = pos;
++        }
++
++        // When clients connect with a SRV record, their host contains a trailing '.'
++        if (len > 0 && host.charAt(len -  1) == '.') {
++            len--;
++        }
++
++        return InetSocketAddress.createUnresolved(host.substring(0, len), port);
++    }
++
++}
+diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/Connection.java
++++ b/src/main/java/net/minecraft/network/Connection.java
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+     @Nullable
+     BandwidthDebugMonitor bandwidthDebugMonitor;
+     public String hostname = ""; // CraftBukkit - add field
++    // Paper start - NetworkClient implementation
++    public int protocolVersion;
++    public java.net.InetSocketAddress virtualHost;
++    // Paper end
+ 
+     // Paper start - add utility methods
+     public final net.minecraft.server.level.ServerPlayer getPlayer() {
+diff --git a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
+             // Spigot End
+         }
+ 
++        // Paper start - NetworkClient implementation
++        this.connection.protocolVersion = packet.protocolVersion();
++        this.connection.virtualHost = com.destroystokyo.paper.network.PaperNetworkClient.prepareVirtualHost(packet.hostName(), packet.port());
++        // Paper end
+     }
+ 
+     @Override
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -0,0 +0,0 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+         this.getHandle().transferCookieConnection.send(new ClientboundTransferPacket(host, port));
+     }
+ 
++    // Paper start - Implement NetworkClient
++    @Override
++    public int getProtocolVersion() {
++        if (getHandle().connection == null) return -1;
++        return getHandle().connection.connection.protocolVersion;
++    }
++
++    @Override
++    public InetSocketAddress getVirtualHost() {
++        if (getHandle().connection == null) return null;
++        return getHandle().connection.connection.virtualHost;
++    }
++    // Paper end
++
+     @Override
+     public double getEyeHeight(boolean ignorePose) {
+         if (ignorePose) {

patches/server/Expose-server-CommandMap.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <rileysebastianpark@gmail.com>
+Date: Thu, 3 Mar 2016 02:15:57 -0600
+Subject: [PATCH] Expose server CommandMap
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+         return this.helpMap;
+     }
+ 
++    @Override // Paper - add override
+     public SimpleCommandMap getCommandMap() {
+         return this.commandMap;
+     }

patches/server/Faster-redstone-torch-rapid-clock-removal.patch

@@ -0,0 +1,68 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Martin Panzer <postremus1996@googlemail.com>
+Date: Mon, 23 May 2016 12:12:37 +0200
+Subject: [PATCH] Faster redstone torch rapid clock removal
+
+Only resize the the redstone torch list once, since resizing arrays / lists is costly
+
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+     private org.spigotmc.TickLimiter tileLimiter;
+     private int tileTickPosition;
+     public final Map<Explosion.CacheKey, Float> explosionDensityCache = new HashMap<>(); // Paper - Optimize explosions
++    public java.util.ArrayDeque<net.minecraft.world.level.block.RedstoneTorchBlock.Toggle> redstoneUpdateInfos; // Paper - Faster redstone torch rapid clock removal; Move from Map in BlockRedstoneTorch to here
+ 
+     public CraftWorld getWorld() {
+         return this.world;
+diff --git a/src/main/java/net/minecraft/world/level/block/RedstoneTorchBlock.java b/src/main/java/net/minecraft/world/level/block/RedstoneTorchBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/RedstoneTorchBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/RedstoneTorchBlock.java
+@@ -0,0 +0,0 @@ public class RedstoneTorchBlock extends BaseTorchBlock {
+ 
+     public static final MapCodec<RedstoneTorchBlock> CODEC = simpleCodec(RedstoneTorchBlock::new);
+     public static final BooleanProperty LIT = BlockStateProperties.LIT;
+-    private static final Map<BlockGetter, List<RedstoneTorchBlock.Toggle>> RECENT_TOGGLES = new WeakHashMap();
++    // Paper - Faster redstone torch rapid clock removal; Move the mapped list to World
+     public static final int RECENT_TOGGLE_TIMER = 60;
+     public static final int MAX_RECENT_TOGGLES = 8;
+     public static final int RESTART_DELAY = 160;
+@@ -0,0 +0,0 @@ public class RedstoneTorchBlock extends BaseTorchBlock {
+     @Override
+     protected void tick(BlockState state, ServerLevel world, BlockPos pos, RandomSource random) {
+         boolean flag = this.hasNeighborSignal(world, pos, state);
+-        List<RedstoneTorchBlock.Toggle> list = (List) RedstoneTorchBlock.RECENT_TOGGLES.get(world);
+-
+-        while (list != null && !list.isEmpty() && world.getGameTime() - ((RedstoneTorchBlock.Toggle) list.get(0)).when > 60L) {
+-            list.remove(0);
++        // Paper start - Faster redstone torch rapid clock removal
++        java.util.ArrayDeque<RedstoneTorchBlock.Toggle> redstoneUpdateInfos = world.redstoneUpdateInfos;
++        if (redstoneUpdateInfos != null) {
++            RedstoneTorchBlock.Toggle curr;
++            while ((curr = redstoneUpdateInfos.peek()) != null && world.getGameTime() - curr.when > 60L) {
++                redstoneUpdateInfos.poll();
++            }
+         }
++        // Paper end - Faster redstone torch rapid clock removal
+ 
+         // CraftBukkit start
+         org.bukkit.plugin.PluginManager manager = world.getCraftServer().getPluginManager();
+@@ -0,0 +0,0 @@ public class RedstoneTorchBlock extends BaseTorchBlock {
+     }
+ 
+     private static boolean isToggledTooFrequently(Level world, BlockPos pos, boolean addNew) {
+-        List<RedstoneTorchBlock.Toggle> list = (List) RedstoneTorchBlock.RECENT_TOGGLES.computeIfAbsent(world, (iblockaccess) -> {
+-            return Lists.newArrayList();
+-        });
++        // Paper start - Faster redstone torch rapid clock removal
++        java.util.ArrayDeque<RedstoneTorchBlock.Toggle> list = world.redstoneUpdateInfos;
++        if (list == null) {
++            list = world.redstoneUpdateInfos = new java.util.ArrayDeque<>();
++        }
++        // Paper end - Faster redstone torch rapid clock removal
+ 
+         if (addNew) {
+             list.add(new RedstoneTorchBlock.Toggle(pos.immutable(), world.getGameTime()));

patches/server/Filter-bad-block-entity-nbt-data-from-falling-blocks.patch

@@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Sat, 12 Nov 2016 23:25:22 -0600
+Subject: [PATCH] Filter bad block entity nbt data from falling blocks
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
++++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+@@ -0,0 +0,0 @@ public class FallingBlockEntity extends Entity {
+             this.dropItem = nbt.getBoolean("DropItem");
+         }
+ 
+-        if (nbt.contains("TileEntityData", 10)) {
++        if (nbt.contains("TileEntityData", 10) && !(this.level().paperConfig().entities.spawning.filterBadTileEntityNbtFromFallingBlocks && this.blockState.getBlock() instanceof net.minecraft.world.level.block.GameMasterBlock)) { // Paper - Filter bad block entity nbt data from falling blocks
+             this.blockData = nbt.getCompound("TileEntityData").copy();
+         }
+ 

patches/server/Firework-API-s.patch

@@ -0,0 +1,98 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Wed, 28 Dec 2016 07:18:33 +0100
+Subject: [PATCH] Firework API's
+
+== AT ==
+public net.minecraft.world.entity.projectile.FireworkRocketEntity attachedToEntity
+
+diff --git a/src/main/java/net/minecraft/world/entity/projectile/FireworkRocketEntity.java b/src/main/java/net/minecraft/world/entity/projectile/FireworkRocketEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/projectile/FireworkRocketEntity.java
++++ b/src/main/java/net/minecraft/world/entity/projectile/FireworkRocketEntity.java
+@@ -0,0 +0,0 @@ public class FireworkRocketEntity extends Projectile implements ItemSupplier {
+     public int lifetime;
+     @Nullable
+     public LivingEntity attachedToEntity;
++    @Nullable public java.util.UUID spawningEntity; // Paper
+ 
+     public FireworkRocketEntity(EntityType<? extends FireworkRocketEntity> type, Level world) {
+         super(type, world);
+@@ -0,0 +0,0 @@ public class FireworkRocketEntity extends Projectile implements ItemSupplier {
+         nbt.putInt("LifeTime", this.lifetime);
+         nbt.put("FireworksItem", this.getItem().save(this.registryAccess()));
+         nbt.putBoolean("ShotAtAngle", (Boolean) this.entityData.get(FireworkRocketEntity.DATA_SHOT_AT_ANGLE));
++        // Paper start
++        if (this.spawningEntity != null) {
++            nbt.putUUID("SpawningEntity", this.spawningEntity);
++        }
++        // Paper end
+     }
+ 
+     @Override
+@@ -0,0 +0,0 @@ public class FireworkRocketEntity extends Projectile implements ItemSupplier {
+         if (nbt.contains("ShotAtAngle")) {
+             this.entityData.set(FireworkRocketEntity.DATA_SHOT_AT_ANGLE, nbt.getBoolean("ShotAtAngle"));
+         }
+-
++        // Paper start
++        if (nbt.hasUUID("SpawningEntity")) {
++            this.spawningEntity = nbt.getUUID("SpawningEntity");
++        }
++        // Paper end
+     }
+ 
+     private List<FireworkExplosion> getExplosions() {
+diff --git a/src/main/java/net/minecraft/world/item/CrossbowItem.java b/src/main/java/net/minecraft/world/item/CrossbowItem.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/item/CrossbowItem.java
++++ b/src/main/java/net/minecraft/world/item/CrossbowItem.java
+@@ -0,0 +0,0 @@ public class CrossbowItem extends ProjectileWeaponItem {
+     @Override
+     protected Projectile createProjectile(Level world, LivingEntity shooter, ItemStack weaponStack, ItemStack projectileStack, boolean critical) {
+         if (projectileStack.is(Items.FIREWORK_ROCKET)) {
+-            return new FireworkRocketEntity(world, projectileStack, shooter, shooter.getX(), shooter.getEyeY() - 0.15F, shooter.getZ(), true);
++            // Paper start
++            FireworkRocketEntity entity =  new FireworkRocketEntity(world, projectileStack, shooter, shooter.getX(), shooter.getEyeY() - 0.15F, shooter.getZ(), true);
++            entity.spawningEntity = shooter.getUUID(); // Paper
++            return entity;
++            // Paper end
+         } else {
+             Projectile projectile = super.createProjectile(world, shooter, weaponStack, projectileStack, critical);
+             if (projectile instanceof AbstractArrow abstractArrow) {
+diff --git a/src/main/java/net/minecraft/world/item/FireworkRocketItem.java b/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
++++ b/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
+@@ -0,0 +0,0 @@ public class FireworkRocketItem extends Item implements ProjectileItem {
+                 vec3.z + (double)direction.getStepZ() * 0.15,
+                 itemStack
+             );
++            fireworkRocketEntity.spawningEntity = context.getPlayer() == null ? null : context.getPlayer().getUUID(); // Paper
+             level.addFreshEntity(fireworkRocketEntity);
+             itemStack.shrink(1);
+         }
+@@ -0,0 +0,0 @@ public class FireworkRocketItem extends Item implements ProjectileItem {
+             ItemStack itemStack = user.getItemInHand(hand);
+             if (!world.isClientSide) {
+                 FireworkRocketEntity fireworkRocketEntity = new FireworkRocketEntity(world, itemStack, user);
++                fireworkRocketEntity.spawningEntity = user.getUUID(); // Paper
+                 world.addFreshEntity(fireworkRocketEntity);
+                 itemStack.consume(1, user);
+                 user.awardStat(Stats.ITEM_USED.get(this));
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftFirework.java
+@@ -0,0 +0,0 @@ public class CraftFirework extends CraftProjectile implements Firework {
+     public void setShotAtAngle(boolean shotAtAngle) {
+         this.getHandle().getEntityData().set(FireworkRocketEntity.DATA_SHOT_AT_ANGLE, shotAtAngle);
+     }
++
++    // Paper start
++    @Override
++    public java.util.UUID getSpawningEntity() {
++        return getHandle().spawningEntity;
++    }
++    // Paper end
+ }

patches/server/Fix-Cancelling-BlockPlaceEvent-triggering-physics.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sun, 3 Apr 2016 17:48:50 -0400
+Subject: [PATCH] Fix Cancelling BlockPlaceEvent triggering physics
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements WorldGenLevel {
+ 
+     @Override
+     public void updateNeighborsAt(BlockPos pos, Block sourceBlock) {
++        if (captureBlockStates) { return; } // Paper - Cancel all physics during placement
+         this.neighborUpdater.updateNeighborsAtExceptFromFacing(pos, sourceBlock, (Direction) null);
+     }
+ 

patches/server/Fix-MC-117075-Block-entity-unload-lag-spike.patch

@@ -0,0 +1,34 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: mezz <tehgeek@gmail.com>
+Date: Wed, 9 Aug 2017 17:51:22 -0500
+Subject: [PATCH] Fix MC-117075: Block entity unload lag spike
+
+
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+         boolean flag = this.tickRateManager().runsNormally();
+ 
+         int tilesThisCycle = 0;
++        var toRemove = new it.unimi.dsi.fastutil.objects.ReferenceOpenHashSet<TickingBlockEntity>(); // Paper - Fix MC-117075; use removeAll
++        toRemove.add(null); // Paper - Fix MC-117075
+         for (tileTickPosition = 0; tileTickPosition < this.blockEntityTickers.size(); tileTickPosition++) { // Paper - Disable tick limiters
+             this.tileTickPosition = (this.tileTickPosition < this.blockEntityTickers.size()) ? this.tileTickPosition : 0;
+             TickingBlockEntity tickingblockentity = (TickingBlockEntity) this.blockEntityTickers.get(this.tileTickPosition);
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+             if (tickingblockentity.isRemoved()) {
+                 // Spigot start
+                 tilesThisCycle--;
+-                this.blockEntityTickers.remove(this.tileTickPosition--);
++                toRemove.add(tickingblockentity); // Paper - Fix MC-117075; use removeAll
+                 // Spigot end
+             } else if (flag && this.shouldTickBlocksAt(tickingblockentity.getPos())) {
+                 tickingblockentity.tick();
+             }
+         }
++        this.blockEntityTickers.removeAll(toRemove); // Paper - Fix MC-117075
+ 
+         this.timings.tileEntityTick.stopTiming(); // Spigot
+         this.tickingBlockEntities = false;

patches/server/Fix-global-sound-handling.patch

@@ -0,0 +1,101 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Tue, 31 May 2016 22:53:50 -0400
+Subject: [PATCH] Fix global sound handling
+
+* Only send global sounds to same world if limiting radius
+* respect global sound events gamerule
+
+Co-authored-by: Evan McCarthy <evanmccarthy@outlook.com>
+Co-authored-by: lexikiq <noellekiq@gmail.com>
+Co-authored-by: Aikar <aikar@aikar.co>
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements WorldGenLevel {
+ 
+     @Override
+     public void levelEvent(@Nullable Player player, int eventId, BlockPos pos, int data) {
+-        this.server.getPlayerList().broadcast(player, (double) pos.getX(), (double) pos.getY(), (double) pos.getZ(), 64.0D, this.dimension(), new ClientboundLevelEventPacket(eventId, pos, data, false));
++        this.server.getPlayerList().broadcast(player, (double) pos.getX(), (double) pos.getY(), (double) pos.getZ(), 64.0D, this.dimension(), new ClientboundLevelEventPacket(eventId, pos, data, false)); // Paper - diff on change (the 64.0 distance is used as defaults for sound ranges in spigot config for ender dragon, end portal and wither)
+     }
+ 
+     public int getLogicalHeight() {
+diff --git a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
++++ b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
+@@ -0,0 +0,0 @@ public class EnderDragon extends Mob implements Enemy {
+                 // CraftBukkit start - Use relative location for far away sounds
+                 // this.level().globalLevelEvent(1028, this.blockPosition(), 0);
+                 int viewDistance = ((ServerLevel) this.level()).getCraftServer().getViewDistance() * 16;
+-                for (net.minecraft.server.level.ServerPlayer player : this.level().getServer().getPlayerList().players) {
++                for (net.minecraft.server.level.ServerPlayer player : this.level().getPlayersForGlobalSoundGamerule()) { // Paper - respect global sound events gamerule
+                     double deltaX = this.getX() - player.getX();
+                     double deltaZ = this.getZ() - player.getZ();
+                     double distanceSquared = deltaX * deltaX + deltaZ * deltaZ;
+-                    if ( this.level().spigotConfig.dragonDeathSoundRadius > 0 && distanceSquared > this.level().spigotConfig.dragonDeathSoundRadius * this.level().spigotConfig.dragonDeathSoundRadius ) continue; // Spigot
++                    final double soundRadiusSquared = this.level().getGlobalSoundRangeSquared(config -> config.dragonDeathSoundRadius); // Paper - respect global sound events gamerule
++                    if ( !this.level().getGameRules().getBoolean(GameRules.RULE_GLOBAL_SOUND_EVENTS) && distanceSquared > soundRadiusSquared ) continue; // Spigot // Paper - respect global sound events gamerule
+                     if (distanceSquared > viewDistance * viewDistance) {
+                         double deltaLength = Math.sqrt(distanceSquared);
+                         double relativeX = player.getX() + (deltaX / deltaLength) * viewDistance;
+diff --git a/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java b/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java
++++ b/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java
+@@ -0,0 +0,0 @@ public class WitherBoss extends Monster implements PowerableMob, RangedAttackMob
+                     // CraftBukkit start - Use relative location for far away sounds
+                     // this.level().globalLevelEvent(1023, new BlockPosition(this), 0);
+                     int viewDistance = ((ServerLevel) this.level()).getCraftServer().getViewDistance() * 16;
+-                    for (ServerPlayer player : (List<ServerPlayer>) MinecraftServer.getServer().getPlayerList().players) {
++                    for (ServerPlayer player : this.level().getPlayersForGlobalSoundGamerule()) { // Paper - respect global sound events gamerule
+                         double deltaX = this.getX() - player.getX();
+                         double deltaZ = this.getZ() - player.getZ();
+                         double distanceSquared = deltaX * deltaX + deltaZ * deltaZ;
+-                        if ( this.level().spigotConfig.witherSpawnSoundRadius > 0 && distanceSquared > this.level().spigotConfig.witherSpawnSoundRadius * this.level().spigotConfig.witherSpawnSoundRadius ) continue; // Spigot
++                        final double soundRadiusSquared = this.level().getGlobalSoundRangeSquared(config -> config.witherSpawnSoundRadius); // Paper - respect global sound events gamerule
++                        if ( !this.level().getGameRules().getBoolean(GameRules.RULE_GLOBAL_SOUND_EVENTS) && distanceSquared > soundRadiusSquared ) continue; // Spigot // Paper - respect global sound events gamerule
+                         if (distanceSquared > viewDistance * viewDistance) {
+                             double deltaLength = Math.sqrt(distanceSquared);
+                             double relativeX = player.getX() + (deltaX / deltaLength) * viewDistance;
+diff --git a/src/main/java/net/minecraft/world/item/EnderEyeItem.java b/src/main/java/net/minecraft/world/item/EnderEyeItem.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/item/EnderEyeItem.java
++++ b/src/main/java/net/minecraft/world/item/EnderEyeItem.java
+@@ -0,0 +0,0 @@ public class EnderEyeItem extends Item {
+                     // world.b(1038, blockposition1.c(1, 0, 1), 0);
+                     int viewDistance = world.getCraftServer().getViewDistance() * 16;
+                     BlockPos soundPos = blockposition1.offset(1, 0, 1);
+-                    for (ServerPlayer player : world.getServer().getPlayerList().players) {
++                    for (ServerPlayer player : world.getPlayersForGlobalSoundGamerule()) { // Paper - respect global sound events gamerule
+                         double deltaX = soundPos.getX() - player.getX();
+                         double deltaZ = soundPos.getZ() - player.getZ();
+                         double distanceSquared = deltaX * deltaX + deltaZ * deltaZ;
+-                        if (world.spigotConfig.endPortalSoundRadius > 0 && distanceSquared > world.spigotConfig.endPortalSoundRadius * world.spigotConfig.endPortalSoundRadius) continue; // Spigot
++                        final double soundRadiusSquared = world.getGlobalSoundRangeSquared(config -> config.endPortalSoundRadius); // Paper - respect global sound events gamerule
++                        if (!world.getGameRules().getBoolean(net.minecraft.world.level.GameRules.RULE_GLOBAL_SOUND_EVENTS) && distanceSquared > soundRadiusSquared) continue; // Spigot // Paper - respect global sound events gamerule
+                         if (distanceSquared > viewDistance * viewDistance) {
+                             double deltaLength = Math.sqrt(distanceSquared);
+                             double relativeX = player.getX() + (deltaX / deltaLength) * viewDistance;
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+ 
+         private ExplosionInteraction() {}
+     }
++    // Paper start - respect global sound events gamerule
++    public List<net.minecraft.server.level.ServerPlayer> getPlayersForGlobalSoundGamerule() {
++        return this.getGameRules().getBoolean(GameRules.RULE_GLOBAL_SOUND_EVENTS) ? ((ServerLevel) this).getServer().getPlayerList().players : ((ServerLevel) this).players();
++    }
++
++    public double getGlobalSoundRangeSquared(java.util.function.Function<org.spigotmc.SpigotWorldConfig, Integer> rangeFunction) {
++        final double range = rangeFunction.apply(this.spigotConfig);
++        return range <= 0 ? 64.0 * 64.0 : range * range; // 64 is taken from default in ServerLevel#levelEvent
++    }
++    // Paper end - respect global sound events gamerule
+ }

patches/server/Fix-this-stupid-bullshit.patch

@@ -0,0 +1,52 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Kyle Wood <kyle@denwav.dev>
+Date: Sun, 6 Aug 2017 17:17:53 -0500
+Subject: [PATCH] Fix this stupid bullshit
+
+Disable the 15 second sleep when the server jar hasn't been rebuilt within a period of time.
+
+modified in order to prevent merge conflicts when Spigot changes/disables the warning,
+and to provide some level of hint without being disruptive.
+
+diff --git a/src/main/java/net/minecraft/server/Bootstrap.java b/src/main/java/net/minecraft/server/Bootstrap.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/Bootstrap.java
++++ b/src/main/java/net/minecraft/server/Bootstrap.java
+@@ -0,0 +0,0 @@ public class Bootstrap {
+     public static void bootStrap() {
+         if (!Bootstrap.isBootstrapped) {
+             // CraftBukkit start
+-            String name = Bootstrap.class.getSimpleName();
++            /*String name = Bootstrap.class.getSimpleName(); // Paper
+             switch (name) {
+                 case "DispenserRegistry":
+                     break;
+@@ -0,0 +0,0 @@ public class Bootstrap {
+                     System.err.println("*** WARNING: This server jar is unsupported, use at your own risk. ***");
+                     System.err.println("**********************************************************************");
+                     break;
+-            }
++            }*/ // Paper
+             // CraftBukkit end
+             Bootstrap.isBootstrapped = true;
+             Instant instant = Instant.now();
+diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/Main.java
++++ b/src/main/java/org/bukkit/craftbukkit/Main.java
+@@ -0,0 +0,0 @@ public class Main {
+                     Calendar deadline = Calendar.getInstance();
+                     deadline.add(Calendar.DAY_OF_YEAR, -3);
+                     if (buildDate.before(deadline.getTime())) {
+-                        System.err.println("*** Error, this build is outdated ***");
++                        // Paper start - This is some stupid bullshit
++                        System.err.println("*** Warning, you've not updated in a while! ***");
+                         System.err.println("*** Please download a new build as per instructions from https://papermc.io/downloads/paper ***"); // Paper
+-                        System.err.println("*** Server will start in 20 seconds ***");
+-                        Thread.sleep(TimeUnit.SECONDS.toMillis(20));
++                        //System.err.println("*** Server will start in 20 seconds ***");
++                        //Thread.sleep(TimeUnit.SECONDS.toMillis(20));
++                        // Paper end
+                     }
+                 }
+ 

patches/server/Handle-Item-Meta-Inconsistencies.patch

@@ -0,0 +1,267 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Thu, 28 May 2015 23:00:19 -0400
+Subject: [PATCH] Handle Item Meta Inconsistencies
+
+First, Enchantment order would blow away seeing 2 items as the same,
+however the Client forces enchantment list in a certain order, as well
+as does the /enchant command. Anvils can insert it into forced order,
+causing 2 same items to be considered different.
+
+This change makes unhandled NBT Tags and Enchantments use a sorted tree map,
+so they will always be in a consistent order.
+
+Additionally, the old enchantment API was never updated when ItemMeta
+was added, resulting in 2 different ways to modify an items enchantments.
+
+For consistency, the old API methods now forward to use the
+ItemMeta API equivalents, and should deprecate the old API's.
+
+diff --git a/src/main/java/net/minecraft/world/item/enchantment/ItemEnchantments.java b/src/main/java/net/minecraft/world/item/enchantment/ItemEnchantments.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/item/enchantment/ItemEnchantments.java
++++ b/src/main/java/net/minecraft/world/item/enchantment/ItemEnchantments.java
+@@ -0,0 +0,0 @@ import net.minecraft.tags.TagKey;
+ import net.minecraft.world.item.Item;
+ import net.minecraft.world.item.TooltipFlag;
+ import net.minecraft.world.item.component.TooltipProvider;
++// Paper start
++import it.unimi.dsi.fastutil.objects.Object2IntAVLTreeMap;
++// Paper end
+ 
+ public class ItemEnchantments implements TooltipProvider {
+-    public static final ItemEnchantments EMPTY = new ItemEnchantments(new Object2IntOpenHashMap<>(), true);
++    // Paper start
++    private static final java.util.Comparator<Holder<Enchantment>> ENCHANTMENT_ORDER = java.util.Comparator.comparing(Holder::getRegisteredName);
++    public static final ItemEnchantments EMPTY = new ItemEnchantments(new Object2IntAVLTreeMap<>(ENCHANTMENT_ORDER), true);
++    // Paper end
+     public static final int MAX_LEVEL = 255;
+     private static final Codec<Integer> LEVEL_CODEC = Codec.intRange(0, 255);
+-    private static final Codec<Object2IntOpenHashMap<Holder<Enchantment>>> LEVELS_CODEC = Codec.unboundedMap(
++    private static final Codec<Object2IntAVLTreeMap<Holder<Enchantment>>> LEVELS_CODEC = Codec.unboundedMap( // Paper
+             BuiltInRegistries.ENCHANTMENT.holderByNameCodec(), LEVEL_CODEC
+         )
+-        .xmap(Object2IntOpenHashMap::new, Function.identity());
++        .xmap(Object2IntAVLTreeMap::new, Function.identity()); // Paper
+     private static final Codec<ItemEnchantments> FULL_CODEC = RecordCodecBuilder.create(
+         instance -> instance.group(
+                     LEVELS_CODEC.fieldOf("levels").forGetter(component -> component.enchantments),
+@@ -0,0 +0,0 @@ public class ItemEnchantments implements TooltipProvider {
+     );
+     public static final Codec<ItemEnchantments> CODEC = Codec.withAlternative(FULL_CODEC, LEVELS_CODEC, map -> new ItemEnchantments(map, true));
+     public static final StreamCodec<RegistryFriendlyByteBuf, ItemEnchantments> STREAM_CODEC = StreamCodec.composite(
+-        ByteBufCodecs.map(Object2IntOpenHashMap::new, ByteBufCodecs.holderRegistry(Registries.ENCHANTMENT), ByteBufCodecs.VAR_INT),
++        ByteBufCodecs.map((v) -> new Object2IntAVLTreeMap<>(ENCHANTMENT_ORDER), ByteBufCodecs.holderRegistry(Registries.ENCHANTMENT), ByteBufCodecs.VAR_INT), // Paper
+         component -> component.enchantments,
+         ByteBufCodecs.BOOL,
+         component -> component.showInTooltip,
+         ItemEnchantments::new
+     );
+-    final Object2IntOpenHashMap<Holder<Enchantment>> enchantments;
++    final Object2IntAVLTreeMap<Holder<Enchantment>> enchantments; // Paper
+     public final boolean showInTooltip;
+ 
+-    ItemEnchantments(Object2IntOpenHashMap<Holder<Enchantment>> enchantments, boolean showInTooltip) {
++    ItemEnchantments(Object2IntAVLTreeMap<Holder<Enchantment>> enchantments, boolean showInTooltip) { // Paper
+         this.enchantments = enchantments;
+         this.showInTooltip = showInTooltip;
+ 
+@@ -0,0 +0,0 @@ public class ItemEnchantments implements TooltipProvider {
+     }
+ 
+     public static class Mutable {
+-        private final Object2IntOpenHashMap<Holder<Enchantment>> enchantments = new Object2IntOpenHashMap<>();
++        private final Object2IntAVLTreeMap<Holder<Enchantment>> enchantments = new Object2IntAVLTreeMap<>(ENCHANTMENT_ORDER); // Paper
+         public boolean showInTooltip;
+ 
+         public Mutable(ItemEnchantments enchantmentsComponent) {
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+@@ -0,0 +0,0 @@ public final class CraftItemStack extends ItemStack {
+     public void addUnsafeEnchantment(Enchantment ench, int level) {
+         Preconditions.checkArgument(ench != null, "Enchantment cannot be null");
+ 
+-        if (!CraftItemStack.makeTag(this.handle)) {
+-            return;
+-        }
+-        ItemEnchantments list = CraftItemStack.getEnchantmentList(this.handle);
+-        if (list == null) {
+-            list = ItemEnchantments.EMPTY;
+-        }
+-        ItemEnchantments.Mutable listCopy = new ItemEnchantments.Mutable(list);
+-        listCopy.set(CraftEnchantment.bukkitToMinecraft(ench), level);
+-        this.handle.set(DataComponents.ENCHANTMENTS, listCopy.toImmutable());
++        // Paper start - Replace whole method
++        final ItemMeta itemMeta = this.getItemMeta();
++        itemMeta.addEnchant(ench, level, true);
++        this.setItemMeta(itemMeta);
++        // Paper end
+     }
+ 
+     static boolean makeTag(net.minecraft.world.item.ItemStack item) {
+@@ -0,0 +0,0 @@ public final class CraftItemStack extends ItemStack {
+     public int removeEnchantment(Enchantment ench) {
+         Preconditions.checkArgument(ench != null, "Enchantment cannot be null");
+ 
+-        ItemEnchantments list = CraftItemStack.getEnchantmentList(this.handle);
+-        if (list == null) {
+-            return 0;
+-        }
+-        int level = this.getEnchantmentLevel(ench);
+-        if (level <= 0) {
+-            return 0;
+-        }
+-        int size = list.size();
+-
+-        if (size == 1) {
+-            this.handle.remove(DataComponents.ENCHANTMENTS);
+-            return level;
++        // Paper start - replace entire method
++        int level = getEnchantmentLevel(ench);
++        if (level > 0) {
++            final ItemMeta itemMeta = this.getItemMeta();
++            if (itemMeta == null) return 0;
++            itemMeta.removeEnchant(ench);
++            this.setItemMeta(itemMeta);
+         }
+-
+-        ItemEnchantments.Mutable listCopy = new ItemEnchantments.Mutable(list);
+-        listCopy.set(CraftEnchantment.bukkitToMinecraft(ench), -1); // Negative to remove
+-        this.handle.set(DataComponents.ENCHANTMENTS, listCopy.toImmutable());
++        // Paper end
+ 
+         return level;
+     }
+@@ -0,0 +0,0 @@ public final class CraftItemStack extends ItemStack {
+ 
+     @Override
+     public Map<Enchantment, Integer> getEnchantments() {
+-        return CraftItemStack.getEnchantments(this.handle);
++        return this.hasItemMeta() ? this.getItemMeta().getEnchants() : ImmutableMap.<Enchantment, Integer>of(); // Paper - use Item Meta
+     }
+ 
+     static Map<Enchantment, Integer> getEnchantments(net.minecraft.world.item.ItemStack item) {
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
+@@ -0,0 +0,0 @@ import com.google.common.collect.ImmutableList;
+ import com.google.common.collect.ImmutableMap;
+ import com.google.common.collect.ImmutableMultimap;
+ import com.google.common.collect.LinkedHashMultimap;
++import com.google.common.collect.ImmutableSortedMap; // Paper
+ import com.google.common.collect.Lists;
+ import com.google.common.collect.Multimap;
+ import com.google.common.collect.SetMultimap;
+@@ -0,0 +0,0 @@ import java.util.Arrays;
+ import java.util.Base64;
+ import java.util.Collection;
+ import java.util.Collections;
++import java.util.Comparator; // Paper
+ import java.util.EnumSet;
+ import java.util.HashMap;
+ import java.util.Iterator;
+@@ -0,0 +0,0 @@ import java.util.Map;
+ import java.util.Objects;
+ import java.util.Optional;
+ import java.util.Set;
++import java.util.TreeMap; // Paper
+ import java.util.logging.Level;
+ import java.util.logging.Logger;
+ import javax.annotation.Nonnull;
+@@ -0,0 +0,0 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
+     private List<Component> lore; // null and empty are two different states internally
+     private Integer customModelData;
+     private Map<String, String> blockData;
+-    private Map<Enchantment, Integer> enchantments;
++    private EnchantmentMap enchantments; // Paper
+     private Multimap<Attribute, AttributeModifier> attributeModifiers;
+     private int repairCost;
+     private int hideFlag;
+@@ -0,0 +0,0 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
+         this.blockData = meta.blockData;
+ 
+         if (meta.enchantments != null) {
+-            this.enchantments = new LinkedHashMap<Enchantment, Integer>(meta.enchantments);
++            this.enchantments = new EnchantmentMap(meta.enchantments); // Paper
+         }
+ 
+         if (meta.hasAttributeModifiers()) {
+@@ -0,0 +0,0 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
+         }
+     }
+ 
+-    static Map<Enchantment, Integer> buildEnchantments(ItemEnchantments tag) {
+-        Map<Enchantment, Integer> enchantments = new LinkedHashMap<Enchantment, Integer>(tag.size());
++    static EnchantmentMap buildEnchantments(ItemEnchantments tag) { // Paper
++        EnchantmentMap enchantments = new EnchantmentMap(); // Paper
+ 
+         tag.entrySet().forEach((entry) -> {
+             Holder<net.minecraft.world.item.enchantment.Enchantment> id = entry.getKey();
+@@ -0,0 +0,0 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
+         return modifiers;
+     }
+ 
+-    static Map<Enchantment, Integer> buildEnchantments(Map<String, Object> map, ItemMetaKey key) {
++    static EnchantmentMap buildEnchantments(Map<String, Object> map, ItemMetaKey key) { // Paper
+         Map<?, ?> ench = SerializableMeta.getObject(Map.class, map, key.BUKKIT, true);
+         if (ench == null) {
+             return null;
+         }
+ 
+-        Map<Enchantment, Integer> enchantments = new LinkedHashMap<Enchantment, Integer>(ench.size());
++        EnchantmentMap enchantments = new EnchantmentMap(); // Paper
+         for (Map.Entry<?, ?> entry : ench.entrySet()) {
+             // Doctor older enchants
+             String enchantKey = entry.getKey().toString();
+@@ -0,0 +0,0 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
+ 
+     @Override
+     public Map<Enchantment, Integer> getEnchants() {
+-        return this.hasEnchants() ? ImmutableMap.copyOf(this.enchantments) : ImmutableMap.<Enchantment, Integer>of();
++        return this.hasEnchants() ? ImmutableSortedMap.copyOfSorted(this.enchantments) : ImmutableMap.<Enchantment, Integer>of(); // Paper
+     }
+ 
+     @Override
+     public boolean addEnchant(Enchantment ench, int level, boolean ignoreRestrictions) {
+         Preconditions.checkArgument(ench != null, "Enchantment cannot be null");
+         if (this.enchantments == null) {
+-            this.enchantments = new LinkedHashMap<Enchantment, Integer>(4);
++            this.enchantments = new EnchantmentMap(); // Paper
+         }
+ 
+         if (ignoreRestrictions || level >= ench.getStartLevel() && level <= ench.getMaxLevel()) {
+@@ -0,0 +0,0 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
+             clone.customModelData = this.customModelData;
+             clone.blockData = this.blockData;
+             if (this.enchantments != null) {
+-                clone.enchantments = new LinkedHashMap<Enchantment, Integer>(this.enchantments);
++                clone.enchantments = new EnchantmentMap(this.enchantments); // Paper
+             }
+             if (this.hasAttributeModifiers()) {
+                 clone.attributeModifiers = LinkedHashMultimap.create(this.attributeModifiers);
+@@ -0,0 +0,0 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
+ 
+         return (result != null) ? result : Optional.empty();
+     }
++
++    // Paper start
++    private static class EnchantmentMap extends TreeMap<Enchantment, Integer> {
++        private EnchantmentMap(Map<Enchantment, Integer> enchantments) {
++            this();
++            putAll(enchantments);
++        }
++
++        private EnchantmentMap() {
++            super(Comparator.comparing(o -> o.getKey().toString()));
++        }
++
++        public EnchantmentMap clone() {
++            return (EnchantmentMap) super.clone();
++        }
++    }
++    // Paper end
++
+ }

patches/server/Implement-getI18NDisplayName.patch

@@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Wed, 4 May 2016 23:59:38 -0400
+Subject: [PATCH] Implement getI18NDisplayName
+
+Gets the Display name as seen in the Client.
+Currently the server only supports the English language. To override this,
+You must replace the language file embedded in the server jar.
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java
+@@ -0,0 +0,0 @@ public final class CraftItemFactory implements ItemFactory {
+         return CraftItemStack.asCraftMirror(CraftItemStack.asNMSCopy(item));
+     }
+     // Paper end - ensure server conversions API
++
++    // Paper start - add getI18NDisplayName
++    @Override
++    public String getI18NDisplayName(ItemStack item) {
++        net.minecraft.world.item.ItemStack nms = null;
++        if (item instanceof CraftItemStack) {
++            nms = ((CraftItemStack) item).handle;
++        }
++        if (nms == null) {
++            nms = CraftItemStack.asNMSCopy(item);
++        }
++
++        return nms != null ? net.minecraft.locale.Language.getInstance().getOrDefault(nms.getItem().getDescriptionId(nms)) : null;
++    }
++    // Paper end - add getI18NDisplayName
+ }

patches/server/Improve-Player-chat-API-handling.patch

@@ -0,0 +1,80 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Thu, 3 Mar 2016 01:17:12 -0600
+Subject: [PATCH] Improve Player chat API handling
+
+Properly split up the chat and command handling to reflect the server now
+having separate packets for both, and the client always using the correct packet. Text
+from a chat packet should never be parsed into a command, even if it starts with the `/`
+character.
+
+Add a missing async catcher and improve Spigot's async catcher error message.
+
+== AT ==
+public net.minecraft.server.network.ServerGamePacketListenerImpl isChatMessageIllegal(Ljava/lang/String;)Z
+
+Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
+Co-authored-by: SoSeDiK <mrsosedik@gmail.com>
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+         }
+         OutgoingChatMessage outgoing = OutgoingChatMessage.create(original);
+ 
+-        if (!async && s.startsWith("/")) {
++        if (false && !async && s.startsWith("/")) { // Paper - Don't handle commands in chat logic
+             this.handleCommand(s);
+         } else if (this.player.getChatVisibility() == ChatVisiblity.SYSTEM) {
+             // Do nothing, this is coming from a plugin
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+         }
+     }
+ 
+-    private void handleCommand(String s) {
++    public void handleCommand(String s) { // Paper - private -> public
++        org.spigotmc.AsyncCatcher.catchOp("Command Dispatched Async: " + s); // Paper - Add async catcher
+         co.aikar.timings.MinecraftTimings.playerCommandTimer.startTiming(); // Paper
+         if ( org.spigotmc.SpigotConfig.logCommands ) // Spigot
+         this.LOGGER.info(this.player.getScoreboardName() + " issued server command: " + s);
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+     public boolean dispatchCommand(CommandSender sender, String commandLine) {
+         Preconditions.checkArgument(sender != null, "sender cannot be null");
+         Preconditions.checkArgument(commandLine != null, "commandLine cannot be null");
+-        org.spigotmc.AsyncCatcher.catchOp("command dispatch"); // Spigot
++        org.spigotmc.AsyncCatcher.catchOp("Command Dispatched Async: " + commandLine); // Spigot // Paper - Include command in error message
+ 
+         if (this.commandMap.dispatch(sender, commandLine)) {
+             return true;
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -0,0 +0,0 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+ 
+         if (this.getHandle().connection == null) return;
+ 
+-        this.getHandle().connection.chat(msg, PlayerChatMessage.system(msg), false);
++        // Paper start - Improve chat handling
++        if (ServerGamePacketListenerImpl.isChatMessageIllegal(msg)) {
++            this.getHandle().connection.disconnect(Component.translatable("multiplayer.disconnect.illegal_characters"));
++        } else {
++            if (msg.startsWith("/")) {
++                this.getHandle().connection.handleCommand(msg);
++            } else {
++                final PlayerChatMessage playerChatMessage = PlayerChatMessage.system(msg).withUnsignedContent(Component.literal(msg));
++                // TODO chat decorating
++                // TODO text filtering
++                this.getHandle().connection.chat(msg, playerChatMessage, false);
++            }
++        }
++        // Paper end - Improve chat handling
+     }
+ 
+     @Override

patches/server/Improve-the-Saddle-API-for-Horses.patch

@@ -0,0 +1,59 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sat, 10 Dec 2016 16:24:06 -0500
+Subject: [PATCH] Improve the Saddle API for Horses
+
+Not all horses with Saddles have armor. This lets us break up the horses with saddles
+and access their saddle state separately from an interface shared with Armor.
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractHorse.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractHorse.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractHorse.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftAbstractHorse.java
+@@ -0,0 +0,0 @@ import java.util.UUID;
+ import net.minecraft.world.entity.ai.attributes.Attributes;
+ import org.bukkit.craftbukkit.CraftServer;
+ import org.bukkit.craftbukkit.inventory.CraftInventoryAbstractHorse;
++import org.bukkit.craftbukkit.inventory.CraftSaddledInventory;
+ import org.bukkit.entity.AbstractHorse;
+ import org.bukkit.entity.AnimalTamer;
+ import org.bukkit.entity.Horse;
+@@ -0,0 +0,0 @@ public abstract class CraftAbstractHorse extends CraftAnimals implements Abstrac
+ 
+     @Override
+     public AbstractHorseInventory getInventory() {
+-        return new CraftInventoryAbstractHorse(this.getHandle().inventory);
++        return new CraftSaddledInventory(getHandle().inventory);
+     }
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryHorse.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryHorse.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryHorse.java
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryHorse.java
+@@ -0,0 +0,0 @@ import net.minecraft.world.Container;
+ import org.bukkit.inventory.HorseInventory;
+ import org.bukkit.inventory.ItemStack;
+ 
+-public class CraftInventoryHorse extends CraftInventoryAbstractHorse implements HorseInventory {
++public class CraftInventoryHorse extends CraftSaddledInventory implements HorseInventory {
+ 
+     public CraftInventoryHorse(Container inventory) {
+         super(inventory);
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftSaddledInventory.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftSaddledInventory.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftSaddledInventory.java
+@@ -0,0 +0,0 @@
++package org.bukkit.craftbukkit.inventory;
++
++import net.minecraft.world.Container;
++import org.bukkit.inventory.SaddledHorseInventory;
++
++public class CraftSaddledInventory extends CraftInventoryAbstractHorse implements SaddledHorseInventory {
++
++    public CraftSaddledInventory(Container inventory) {
++        super(inventory);
++    }
++
++}

patches/server/Item-canEntityPickup.patch

@@ -0,0 +1,57 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: BillyGalbreath <Blake.Galbreath@GMail.com>
+Date: Fri, 5 May 2017 03:57:17 -0500
+Subject: [PATCH] Item#canEntityPickup
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Mob.java
++++ b/src/main/java/net/minecraft/world/entity/Mob.java
+@@ -0,0 +0,0 @@ public abstract class Mob extends LivingEntity implements EquipmentUser, Targeti
+                 ItemEntity entityitem = (ItemEntity) iterator.next();
+ 
+                 if (!entityitem.isRemoved() && !entityitem.getItem().isEmpty() && !entityitem.hasPickUpDelay() && this.wantsToPickUp(entityitem.getItem())) {
++                    // Paper start - Item#canEntityPickup
++                    if (!entityitem.canMobPickup) {
++                        continue;
++                    }
++                    // Paper end - Item#canEntityPickup
+                     this.pickUpItem(entityitem);
+                 }
+             }
+diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
++++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+@@ -0,0 +0,0 @@ public class ItemEntity extends Entity implements TraceableEntity {
+     public UUID target;
+     public final float bobOffs;
+     private int lastTick = MinecraftServer.currentTick - 1; // CraftBukkit
++    public boolean canMobPickup = true; // Paper - Item#canEntityPickup
+ 
+     public ItemEntity(EntityType<? extends ItemEntity> type, Level world) {
+         super(type, world);
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftItem.java
+@@ -0,0 +0,0 @@ public class CraftItem extends CraftEntity implements Item {
+         }
+     }
+ 
++    // Paper start
++    @Override
++    public boolean canMobPickup() {
++        return this.getHandle().canMobPickup;
++    }
++
++    @Override
++    public void setCanMobPickup(boolean canMobPickup) {
++        this.getHandle().canMobPickup = canMobPickup;
++    }
++    // Paper end
++
+     @Override
+     public void setOwner(UUID uuid) {
+         this.getHandle().setTarget(uuid);

patches/server/LivingEntity-setKiller.patch

@@ -0,0 +1,29 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: BillyGalbreath <Blake.Galbreath@GMail.com>
+Date: Mon, 31 Jul 2017 01:49:48 -0500
+Subject: [PATCH] LivingEntity#setKiller
+
+== AT ==
+public net.minecraft.world.entity.LivingEntity lastHurtByPlayerTime
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+@@ -0,0 +0,0 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
+         return this.getHandle().lastHurtByPlayer == null ? null : (Player) this.getHandle().lastHurtByPlayer.getBukkitEntity();
+     }
+ 
++    // Paper start
++    @Override
++    public void setKiller(Player killer) {
++        net.minecraft.server.level.ServerPlayer entityPlayer = killer == null ? null : ((CraftPlayer) killer).getHandle();
++        getHandle().lastHurtByPlayer = entityPlayer;
++        getHandle().lastHurtByMob = entityPlayer;
++        getHandle().lastHurtByPlayerTime = entityPlayer == null ? 0 : 100; // 100 value taken from EntityLiving#damageEntity
++    }
++    // Paper end
++
+     @Override
+     public boolean addPotionEffect(PotionEffect effect) {
+         return this.addPotionEffect(effect, false);

patches/server/LootTable-API-and-replenishable-lootables.patch

@@ -0,0 +1,808 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sun, 1 May 2016 21:19:14 -0400
+Subject: [PATCH] LootTable API and replenishable lootables
+
+Provides an API to control the loot table for an object.
+Also provides a feature that any Lootable Inventory (Chests in Structures)
+can automatically replenish after a given time.
+
+This feature is good for long term worlds so that newer players
+do not suffer with "Every chest has been looted"
+
+== AT ==
+public org.bukkit.craftbukkit.block.CraftBlockEntityState getTileEntity()Lnet/minecraft/world/level/block/entity/BlockEntity;
+public org.bukkit.craftbukkit.block.CraftLootable setLootTable(Lorg/bukkit/loot/LootTable;J)V
+public org.bukkit.craftbukkit.entity.CraftMinecartContainer setLootTable(Lorg/bukkit/loot/LootTable;J)V
+
+diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java b/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.loottable;
++
++import net.minecraft.world.entity.Entity;
++import net.minecraft.world.entity.vehicle.AbstractMinecartContainer;
++import net.minecraft.world.entity.vehicle.ContainerEntity;
++import net.minecraft.world.level.Level;
++import org.bukkit.Bukkit;
++import org.bukkit.craftbukkit.util.CraftNamespacedKey;
++
++public class PaperContainerEntityLootableInventory implements PaperLootableEntityInventory {
++
++    private final ContainerEntity entity;
++
++    public PaperContainerEntityLootableInventory(ContainerEntity entity) {
++        this.entity = entity;
++    }
++
++    @Override
++    public org.bukkit.loot.LootTable getLootTable() {
++        return entity.getLootTable() != null ? Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(entity.getLootTable())) : null;
++    }
++
++    @Override
++    public void setLootTable(org.bukkit.loot.LootTable table, long seed) {
++        setLootTable(table);
++        setSeed(seed);
++    }
++
++    @Override
++    public void setSeed(long seed) {
++        entity.setLootTableSeed(seed);
++    }
++
++    @Override
++    public long getSeed() {
++        return entity.getLootTableSeed();
++    }
++
++    @Override
++    public void setLootTable(org.bukkit.loot.LootTable table) {
++        entity.setLootTable((table == null) ? null : CraftNamespacedKey.toMinecraft(table.getKey()));
++    }
++
++    @Override
++    public PaperLootableInventoryData getLootableData() {
++        return entity.getLootableData();
++    }
++
++    @Override
++    public Entity getHandle() {
++        return entity.getEntity();
++    }
++
++    @Override
++    public LootableInventory getAPILootableInventory() {
++        return (LootableInventory) entity.getEntity().getBukkitEntity();
++    }
++
++    @Override
++    public Level getNMSWorld() {
++        return entity.level();
++    }
++}
+diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperLootableBlockInventory.java b/src/main/java/com/destroystokyo/paper/loottable/PaperLootableBlockInventory.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/loottable/PaperLootableBlockInventory.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.loottable;
++
++import net.minecraft.core.BlockPos;
++import net.minecraft.world.level.Level;
++import net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity;
++import org.bukkit.Chunk;
++import org.bukkit.block.Block;
++
++public interface PaperLootableBlockInventory extends LootableBlockInventory, PaperLootableInventory {
++
++    RandomizableContainerBlockEntity getTileEntity();
++
++    @Override
++    default LootableInventory getAPILootableInventory() {
++        return this;
++    }
++
++    @Override
++    default Level getNMSWorld() {
++        return this.getTileEntity().getLevel();
++    }
++
++    default Block getBlock() {
++        final BlockPos position = this.getTileEntity().getBlockPos();
++        final Chunk bukkitChunk = this.getBukkitWorld().getChunkAt(org.bukkit.craftbukkit.block.CraftBlock.at(this.getNMSWorld(), position));
++        return bukkitChunk.getBlock(position.getX(), position.getY(), position.getZ());
++    }
++
++    @Override
++    default PaperLootableInventoryData getLootableData() {
++        return this.getTileEntity().lootableData;
++    }
++}
+diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperLootableEntityInventory.java b/src/main/java/com/destroystokyo/paper/loottable/PaperLootableEntityInventory.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/loottable/PaperLootableEntityInventory.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.loottable;
++
++import net.minecraft.world.level.Level;
++import org.bukkit.entity.Entity;
++
++public interface PaperLootableEntityInventory extends LootableEntityInventory, PaperLootableInventory {
++
++    net.minecraft.world.entity.Entity getHandle();
++
++    @Override
++    default LootableInventory getAPILootableInventory() {
++        return this;
++    }
++
++    default Entity getEntity() {
++        return getHandle().getBukkitEntity();
++    }
++
++    @Override
++    default Level getNMSWorld() {
++        return getHandle().getCommandSenderWorld();
++    }
++
++    @Override
++    default PaperLootableInventoryData getLootableData() {
++        return getHandle().lootableData;
++    }
++}
+diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperLootableInventory.java b/src/main/java/com/destroystokyo/paper/loottable/PaperLootableInventory.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/loottable/PaperLootableInventory.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.loottable;
++
++import org.bukkit.loot.Lootable;
++import java.util.UUID;
++import net.minecraft.world.level.Level;
++
++public interface PaperLootableInventory extends LootableInventory, Lootable {
++
++    PaperLootableInventoryData getLootableData();
++    LootableInventory getAPILootableInventory();
++
++    Level getNMSWorld();
++
++    default org.bukkit.World getBukkitWorld() {
++        return getNMSWorld().getWorld();
++    }
++
++    @Override
++    default boolean isRefillEnabled() {
++        return getNMSWorld().paperConfig().lootables.autoReplenish;
++    }
++
++    @Override
++    default boolean hasBeenFilled() {
++        return getLastFilled() != -1;
++    }
++
++    @Override
++    default boolean hasPlayerLooted(UUID player) {
++        return getLootableData().hasPlayerLooted(player);
++    }
++
++    @Override
++    default boolean canPlayerLoot(final UUID player) {
++        return getLootableData().canPlayerLoot(player, this.getNMSWorld().paperConfig());
++    }
++
++    @Override
++    default Long getLastLooted(UUID player) {
++        return getLootableData().getLastLooted(player);
++    }
++
++    @Override
++    default boolean setHasPlayerLooted(UUID player, boolean looted) {
++        final boolean hasLooted = hasPlayerLooted(player);
++        if (hasLooted != looted) {
++            getLootableData().setPlayerLootedState(player, looted);
++        }
++        return hasLooted;
++    }
++
++    @Override
++    default boolean hasPendingRefill() {
++        long nextRefill = getLootableData().getNextRefill();
++        return nextRefill != -1 && nextRefill > getLootableData().getLastFill();
++    }
++
++    @Override
++    default long getLastFilled() {
++        return getLootableData().getLastFill();
++    }
++
++    @Override
++    default long getNextRefill() {
++        return getLootableData().getNextRefill();
++    }
++
++    @Override
++    default long setNextRefill(long refillAt) {
++        if (refillAt < -1) {
++            refillAt = -1;
++        }
++        return getLootableData().setNextRefill(refillAt);
++    }
++}
+diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperLootableInventoryData.java b/src/main/java/com/destroystokyo/paper/loottable/PaperLootableInventoryData.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/loottable/PaperLootableInventoryData.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.loottable;
++
++import io.papermc.paper.configuration.WorldConfiguration;
++import io.papermc.paper.configuration.type.DurationOrDisabled;
++import java.time.temporal.ChronoUnit;
++import java.util.concurrent.TimeUnit;
++import org.bukkit.entity.Player;
++import org.bukkit.loot.LootTable;
++import javax.annotation.Nullable;
++import net.minecraft.nbt.CompoundTag;
++import net.minecraft.nbt.ListTag;
++import java.util.HashMap;
++import java.util.Map;
++import java.util.Random;
++import java.util.UUID;
++
++public class PaperLootableInventoryData {
++
++    private static final Random RANDOM = new Random();
++
++    private long lastFill = -1;
++    private long nextRefill = -1;
++    private int numRefills = 0;
++    private Map<UUID, Long> lootedPlayers;
++    private final PaperLootableInventory lootable;
++
++    public PaperLootableInventoryData(PaperLootableInventory lootable) {
++        this.lootable = lootable;
++    }
++
++    long getLastFill() {
++        return this.lastFill;
++    }
++
++    long getNextRefill() {
++        return this.nextRefill;
++    }
++
++    long setNextRefill(long nextRefill) {
++        long prev = this.nextRefill;
++        this.nextRefill = nextRefill;
++        return prev;
++    }
++
++    public boolean shouldReplenish(@Nullable net.minecraft.world.entity.player.Player player) {
++        LootTable table = this.lootable.getLootTable();
++
++        // No Loot Table associated
++        if (table == null) {
++            return false;
++        }
++
++        // ALWAYS process the first fill or if the feature is disabled
++        if (this.lastFill == -1 || !this.lootable.getNMSWorld().paperConfig().lootables.autoReplenish) {
++            return true;
++        }
++
++        // Only process refills when a player is set
++        if (player == null) {
++            return false;
++        }
++
++        // Chest is not scheduled for refill
++        if (this.nextRefill == -1) {
++            return false;
++        }
++
++        final WorldConfiguration paperConfig = this.lootable.getNMSWorld().paperConfig();
++
++        // Check if max refills has been hit
++        if (paperConfig.lootables.maxRefills != -1 && this.numRefills >= paperConfig.lootables.maxRefills) {
++            return false;
++        }
++
++        // Refill has not been reached
++        if (this.nextRefill > System.currentTimeMillis()) {
++            return false;
++        }
++
++
++        final Player bukkitPlayer = (Player) player.getBukkitEntity();
++        LootableInventoryReplenishEvent event = new LootableInventoryReplenishEvent(bukkitPlayer, lootable.getAPILootableInventory());
++        event.setCancelled(!canPlayerLoot(player.getUUID(), paperConfig));
++        return event.callEvent();
++    }
++    public void processRefill(@Nullable net.minecraft.world.entity.player.Player player) {
++        this.lastFill = System.currentTimeMillis();
++        final WorldConfiguration paperConfig = this.lootable.getNMSWorld().paperConfig();
++        if (paperConfig.lootables.autoReplenish) {
++            long min = paperConfig.lootables.refreshMin.seconds();
++            long max = paperConfig.lootables.refreshMax.seconds();
++            this.nextRefill = this.lastFill + (min + RANDOM.nextLong(max - min + 1)) * 1000L;
++            this.numRefills++;
++            if (paperConfig.lootables.resetSeedOnFill) {
++                this.lootable.setSeed(0);
++            }
++            if (player != null) { // This means that numRefills can be incremented without a player being in the lootedPlayers list - Seems to be EntityMinecartChest specific
++                this.setPlayerLootedState(player.getUUID(), true);
++            }
++        } else {
++            this.lootable.clearLootTable();
++        }
++    }
++
++
++    public void loadNbt(CompoundTag base) {
++        if (!base.contains("Paper.LootableData", 10)) { // 10 = compound
++            return;
++        }
++        CompoundTag comp = base.getCompound("Paper.LootableData");
++        if (comp.contains("lastFill")) {
++            this.lastFill = comp.getLong("lastFill");
++        }
++        if (comp.contains("nextRefill")) {
++            this.nextRefill = comp.getLong("nextRefill");
++        }
++
++        if (comp.contains("numRefills")) {
++            this.numRefills = comp.getInt("numRefills");
++        }
++        if (comp.contains("lootedPlayers", net.minecraft.nbt.Tag.TAG_LIST)) {
++            ListTag list = comp.getList("lootedPlayers", net.minecraft.nbt.Tag.TAG_COMPOUND);
++            final int size = list.size();
++            if (size > 0) {
++                this.lootedPlayers = new HashMap<>(list.size());
++            }
++            for (int i = 0; i < size; i++) {
++                final CompoundTag cmp = list.getCompound(i);
++                lootedPlayers.put(cmp.getUUID("UUID"), cmp.getLong("Time"));
++            }
++        }
++    }
++    public void saveNbt(CompoundTag base) {
++        CompoundTag comp = new CompoundTag();
++        if (this.nextRefill != -1) {
++            comp.putLong("nextRefill", this.nextRefill);
++        }
++        if (this.lastFill != -1) {
++            comp.putLong("lastFill", this.lastFill);
++        }
++        if (this.numRefills != 0) {
++            comp.putInt("numRefills", this.numRefills);
++        }
++        if (this.lootedPlayers != null && !this.lootedPlayers.isEmpty()) {
++            ListTag list = new ListTag();
++            for (Map.Entry<UUID, Long> entry : this.lootedPlayers.entrySet()) {
++                CompoundTag cmp = new CompoundTag();
++                cmp.putUUID("UUID", entry.getKey());
++                cmp.putLong("Time", entry.getValue());
++                list.add(cmp);
++            }
++            comp.put("lootedPlayers", list);
++        }
++
++        if (!comp.isEmpty()) {
++            base.put("Paper.LootableData", comp);
++        }
++    }
++
++    void setPlayerLootedState(UUID player, boolean looted) {
++        if (looted && this.lootedPlayers == null) {
++            this.lootedPlayers = new HashMap<>();
++        }
++        if (looted) {
++            this.lootedPlayers.put(player, System.currentTimeMillis());
++        } else if (this.lootedPlayers != null) {
++            this.lootedPlayers.remove(player);
++        }
++    }
++
++    boolean canPlayerLoot(final UUID player, final WorldConfiguration worldConfiguration) {
++        final Long lastLooted = getLastLooted(player);
++        if (!worldConfiguration.lootables.restrictPlayerReloot || lastLooted == null) return true;
++
++        final DurationOrDisabled restrictPlayerRelootTime = worldConfiguration.lootables.restrictPlayerRelootTime;
++        if (restrictPlayerRelootTime.value().isEmpty()) return false;
++
++        return TimeUnit.SECONDS.toMillis(restrictPlayerRelootTime.value().get().seconds()) + lastLooted < System.currentTimeMillis();
++    }
++
++    boolean hasPlayerLooted(UUID player) {
++        return this.lootedPlayers != null && this.lootedPlayers.containsKey(player);
++    }
++
++    Long getLastLooted(UUID player) {
++        return lootedPlayers != null ? lootedPlayers.get(player) : null;
++    }
++}
+diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java b/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java
+@@ -0,0 +0,0 @@
++package com.destroystokyo.paper.loottable;
++
++import io.papermc.paper.util.MCUtil;
++import net.minecraft.world.level.Level;
++import net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity;
++import org.bukkit.Bukkit;
++import org.bukkit.craftbukkit.util.CraftNamespacedKey;
++
++public class PaperTileEntityLootableInventory implements PaperLootableBlockInventory {
++    private RandomizableContainerBlockEntity tileEntityLootable;
++
++    public PaperTileEntityLootableInventory(RandomizableContainerBlockEntity tileEntityLootable) {
++        this.tileEntityLootable = tileEntityLootable;
++    }
++
++    @Override
++    public org.bukkit.loot.LootTable getLootTable() {
++        return tileEntityLootable.lootTable != null ? Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(tileEntityLootable.lootTable)) : null;
++    }
++
++    @Override
++    public void setLootTable(org.bukkit.loot.LootTable table, long seed) {
++        setLootTable(table);
++        setSeed(seed);
++    }
++
++    @Override
++    public void setLootTable(org.bukkit.loot.LootTable table) {
++        tileEntityLootable.lootTable = (table == null) ? null : CraftNamespacedKey.toMinecraft(table.getKey());
++    }
++
++    @Override
++    public void setSeed(long seed) {
++        tileEntityLootable.lootTableSeed = seed;
++    }
++
++    @Override
++    public long getSeed() {
++        return tileEntityLootable.lootTableSeed;
++    }
++
++    @Override
++    public PaperLootableInventoryData getLootableData() {
++        return tileEntityLootable.lootableData;
++    }
++
++    @Override
++    public RandomizableContainerBlockEntity getTileEntity() {
++        return tileEntityLootable;
++    }
++
++    @Override
++    public LootableInventory getAPILootableInventory() {
++        Level world = tileEntityLootable.getLevel();
++        if (world == null) {
++            return null;
++        }
++        return (LootableInventory) getBukkitWorld().getBlockAt(MCUtil.toLocation(world, tileEntityLootable.getBlockPos())).getState();
++    }
++
++    @Override
++    public Level getNMSWorld() {
++        return tileEntityLootable.getLevel();
++    }
++}
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+     }
+     // Paper end - Share random for entities to make them more random
+ 
++    public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
+     private CraftEntity bukkitEntity;
+ 
+     public CraftEntity getBukkitEntity() {
+diff --git a/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecartContainer.java b/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecartContainer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecartContainer.java
++++ b/src/main/java/net/minecraft/world/entity/vehicle/AbstractMinecartContainer.java
+@@ -0,0 +0,0 @@ public abstract class AbstractMinecartContainer extends AbstractMinecart impleme
+     public ResourceKey<LootTable> lootTable;
+     public long lootTableSeed;
+ 
++    // Paper start
++    {
++        this.lootableData = new com.destroystokyo.paper.loottable.PaperLootableInventoryData(new com.destroystokyo.paper.loottable.PaperContainerEntityLootableInventory(this));
++    }
++    @Override
++    public Entity getEntity() {
++        return this;
++    }
++
++    @Override
++    public com.destroystokyo.paper.loottable.PaperLootableInventoryData getLootableData() {
++        return this.lootableData;
++    }
++    // Paper end
+     // CraftBukkit start
+     public List<HumanEntity> transaction = new java.util.ArrayList<HumanEntity>();
+     private int maxStack = MAX_STACK;
+@@ -0,0 +0,0 @@ public abstract class AbstractMinecartContainer extends AbstractMinecart impleme
+     @Override
+     protected void addAdditionalSaveData(CompoundTag nbt) {
+         super.addAdditionalSaveData(nbt);
++        this.lootableData.saveNbt(nbt); // Paper
+         this.addChestVehicleSaveData(nbt, this.registryAccess());
+     }
+ 
+     @Override
+     protected void readAdditionalSaveData(CompoundTag nbt) {
+         super.readAdditionalSaveData(nbt);
++        this.lootableData.loadNbt(nbt); // Paper
+         this.readChestVehicleSaveData(nbt, this.registryAccess());
+     }
+ 
+diff --git a/src/main/java/net/minecraft/world/entity/vehicle/ChestBoat.java b/src/main/java/net/minecraft/world/entity/vehicle/ChestBoat.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/vehicle/ChestBoat.java
++++ b/src/main/java/net/minecraft/world/entity/vehicle/ChestBoat.java
+@@ -0,0 +0,0 @@ public class ChestBoat extends Boat implements HasCustomInventoryScreen, Contain
+     @Override
+     protected void addAdditionalSaveData(CompoundTag nbt) {
+         super.addAdditionalSaveData(nbt);
++        this.lootableData.saveNbt(nbt); // Paper
+         this.addChestVehicleSaveData(nbt, this.registryAccess());
+     }
+ 
+     @Override
+     protected void readAdditionalSaveData(CompoundTag nbt) {
+         super.readAdditionalSaveData(nbt);
++        this.lootableData.loadNbt(nbt); // Paper
+         this.readChestVehicleSaveData(nbt, this.registryAccess());
+     }
+ 
+@@ -0,0 +0,0 @@ public class ChestBoat extends Boat implements HasCustomInventoryScreen, Contain
+         this.level().gameEvent((Holder) GameEvent.CONTAINER_CLOSE, this.position(), GameEvent.Context.of((Entity) player));
+     }
+ 
++    // Paper start
++    {
++        this.lootableData = new com.destroystokyo.paper.loottable.PaperLootableInventoryData(new com.destroystokyo.paper.loottable.PaperContainerEntityLootableInventory(this));
++    }
++    @Override
++    public Entity getEntity() {
++        return this;
++    }
++
++    @Override
++    public com.destroystokyo.paper.loottable.PaperLootableInventoryData getLootableData() {
++        return this.lootableData;
++    }
++    // Paper end
+     // CraftBukkit start
+     public List<HumanEntity> transaction = new java.util.ArrayList<HumanEntity>();
+     private int maxStack = MAX_STACK;
+diff --git a/src/main/java/net/minecraft/world/entity/vehicle/ContainerEntity.java b/src/main/java/net/minecraft/world/entity/vehicle/ContainerEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/vehicle/ContainerEntity.java
++++ b/src/main/java/net/minecraft/world/entity/vehicle/ContainerEntity.java
+@@ -0,0 +0,0 @@ public interface ContainerEntity extends Container, MenuProvider {
+             if (this.getLootTableSeed() != 0L) {
+                 nbt.putLong("LootTableSeed", this.getLootTableSeed());
+             }
+-        } else {
+-            ContainerHelper.saveAllItems(nbt, this.getItemStacks(), registriesLookup);
+         }
++        ContainerHelper.saveAllItems(nbt, this.getItemStacks(), registriesLookup); // Paper - always save the items, table may still remain
+     }
+ 
+     default void readChestVehicleSaveData(CompoundTag nbt, HolderLookup.Provider registriesLookup) {
+@@ -0,0 +0,0 @@ public interface ContainerEntity extends Container, MenuProvider {
+         if (nbt.contains("LootTable", 8)) {
+             this.setLootTable(ResourceKey.create(Registries.LOOT_TABLE, new ResourceLocation(nbt.getString("LootTable"))));
+             this.setLootTableSeed(nbt.getLong("LootTableSeed"));
+-        } else {
+-            ContainerHelper.loadAllItems(nbt, this.getItemStacks(), registriesLookup);
+         }
++        ContainerHelper.loadAllItems(nbt, this.getItemStacks(), registriesLookup); // Paper - always save the items, table may still remain
+     }
+ 
+     default void chestVehicleDestroyed(DamageSource source, Level world, Entity vehicle) {
+@@ -0,0 +0,0 @@ public interface ContainerEntity extends Container, MenuProvider {
+ 
+     default void unpackChestVehicleLootTable(@Nullable Player player) {
+         MinecraftServer minecraftServer = this.level().getServer();
+-        if (this.getLootTable() != null && minecraftServer != null) {
++        if (this.getLootableData().shouldReplenish(player) && minecraftServer != null) { // Paper
+             LootTable lootTable = minecraftServer.reloadableRegistries().getLootTable(this.getLootTable());
+             if (player != null) {
+                 CriteriaTriggers.GENERATE_LOOT.trigger((ServerPlayer)player, this.getLootTable());
+             }
+ 
+-            this.setLootTable(null);
++            this.getLootableData().processRefill(player); // Paper
+             LootParams.Builder builder = new LootParams.Builder((ServerLevel)this.level()).withParameter(LootContextParams.ORIGIN, this.position());
+             if (player != null) {
+                 builder.withLuck(player.getLuck()).withParameter(LootContextParams.THIS_ENTITY, player);
+@@ -0,0 +0,0 @@ public interface ContainerEntity extends Container, MenuProvider {
+     default boolean isChestVehicleStillValid(Player player) {
+         return !this.isRemoved() && player.canInteractWithEntity(this.getBoundingBox(), 4.0);
+     }
++    // Paper start
++    default Entity getEntity() {
++        throw new UnsupportedOperationException();
++    }
++
++    default com.destroystokyo.paper.loottable.PaperLootableInventoryData getLootableData() {
++        throw new UnsupportedOperationException();
++    }
++    // Paper end
+ }
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/RandomizableContainerBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/RandomizableContainerBlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/RandomizableContainerBlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/RandomizableContainerBlockEntity.java
+@@ -0,0 +0,0 @@ public abstract class RandomizableContainerBlockEntity extends BaseContainerBloc
+     @Nullable
+     public ResourceKey<LootTable> lootTable;
+     public long lootTableSeed = 0L;
++    public final com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData = new com.destroystokyo.paper.loottable.PaperLootableInventoryData(new com.destroystokyo.paper.loottable.PaperTileEntityLootableInventory(this)); // Paper
+ 
+     protected RandomizableContainerBlockEntity(BlockEntityType<?> type, BlockPos pos, BlockState state) {
+         super(type, pos, state);
+@@ -0,0 +0,0 @@ public abstract class RandomizableContainerBlockEntity extends BaseContainerBloc
+         this.lootTableSeed = lootTableSeed;
+     }
+ 
++    // Paper start
++    @Override
++    public boolean tryLoadLootTable(final net.minecraft.nbt.CompoundTag nbt) {
++        // Copied from super with changes, always check the original method
++        this.lootableData.loadNbt(nbt); // Paper
++        if (nbt.contains("LootTable", 8)) {
++            this.setLootTable(ResourceLocation.tryParse(nbt.getString("LootTable")));
++            try { org.bukkit.craftbukkit.util.CraftNamespacedKey.fromMinecraft(this.lootTable); } catch (IllegalArgumentException ex) { this.lootTable = null; } // Paper - validate
++            this.setLootTableSeed(nbt.getLong("LootTableSeed"));
++            return false; // Paper - always load the items, table may still remain
++        } else {
++            return false;
++        }
++    }
++
++    @Override
++    public boolean trySaveLootTable(final net.minecraft.nbt.CompoundTag nbt) {
++        this.lootableData.saveNbt(nbt);
++        RandomizableContainer.super.trySaveLootTable(nbt);
++        return false;
++    }
++
++    @Override
++    public void unpackLootTable(@org.jetbrains.annotations.Nullable final Player player) {
++        // Copied from super with changes, always check the original method
++        net.minecraft.world.level.Level level = this.getLevel();
++        BlockPos blockPos = this.getBlockPos();
++        ResourceLocation resourceLocation = this.getLootTable();
++        if (this.lootableData.shouldReplenish(player) && level != null) { // Paper
++            net.minecraft.world.level.storage.loot.LootTable lootTable = level.getServer().getLootData().getLootTable(resourceLocation);
++            if (player instanceof net.minecraft.server.level.ServerPlayer) {
++                net.minecraft.advancements.CriteriaTriggers.GENERATE_LOOT.trigger((net.minecraft.server.level.ServerPlayer)player, resourceLocation);
++            }
++
++            this.lootableData.processRefill(player); // Paper
++            net.minecraft.world.level.storage.loot.LootParams.Builder builder = (new net.minecraft.world.level.storage.loot.LootParams.Builder((net.minecraft.server.level.ServerLevel)level)).withParameter(net.minecraft.world.level.storage.loot.parameters.LootContextParams.ORIGIN, net.minecraft.world.phys.Vec3.atCenterOf(blockPos));
++            if (player != null) {
++                builder.withLuck(player.getLuck()).withParameter(net.minecraft.world.level.storage.loot.parameters.LootContextParams.THIS_ENTITY, player);
++            }
++
++            lootTable.fill(this, builder.create(net.minecraft.world.level.storage.loot.parameters.LootContextParamSets.CHEST), this.getLootTableSeed());
++        }
++
++    }
++    // Paper end
++
+     @Override
+     public boolean isEmpty() {
+         this.unpackLootTable(null);
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBrushableBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBrushableBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBrushableBlock.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBrushableBlock.java
+@@ -0,0 +0,0 @@ public class CraftBrushableBlock extends CraftBlockEntityState<BrushableBlockEnt
+         this.setLootTable(this.getLootTable(), seed);
+     }
+ 
+-    private void setLootTable(LootTable table, long seed) {
++    public void setLootTable(LootTable table, long seed) { // Paper - make public since it overrides a public method
+         this.getSnapshot().setLootTable(CraftLootTable.bukkitToMinecraft(table), seed);
+     }
+ 
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftChest.java b/src/main/java/org/bukkit/craftbukkit/block/CraftChest.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftChest.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftChest.java
+@@ -0,0 +0,0 @@ import org.bukkit.craftbukkit.CraftWorld;
+ import org.bukkit.craftbukkit.inventory.CraftInventory;
+ import org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest;
+ import org.bukkit.inventory.Inventory;
++import com.destroystokyo.paper.loottable.PaperLootableBlockInventory; // Paper
+ 
+-public class CraftChest extends CraftLootable<ChestBlockEntity> implements Chest {
++public class CraftChest extends CraftLootable<ChestBlockEntity> implements Chest, PaperLootableBlockInventory { // Paper
+ 
+     public CraftChest(World world, ChestBlockEntity tileEntity) {
+         super(world, tileEntity);
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java b/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java
+@@ -0,0 +0,0 @@ import org.bukkit.craftbukkit.CraftLootTable;
+ import org.bukkit.loot.LootTable;
+ import org.bukkit.loot.Lootable;
+ 
+-public abstract class CraftLootable<T extends RandomizableContainerBlockEntity> extends CraftContainer<T> implements Nameable, Lootable {
++public abstract class CraftLootable<T extends RandomizableContainerBlockEntity> extends CraftContainer<T> implements Nameable, Lootable, com.destroystokyo.paper.loottable.PaperLootableBlockInventory { // Paper
+ 
+     public CraftLootable(World world, T tileEntity) {
+         super(world, tileEntity);
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftChestBoat.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftChestBoat.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftChestBoat.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftChestBoat.java
+@@ -0,0 +0,0 @@ import org.bukkit.craftbukkit.inventory.CraftInventory;
+ import org.bukkit.inventory.Inventory;
+ import org.bukkit.loot.LootTable;
+ 
+-public class CraftChestBoat extends CraftBoat implements org.bukkit.entity.ChestBoat {
+-
++public class CraftChestBoat extends CraftBoat implements org.bukkit.entity.ChestBoat, com.destroystokyo.paper.loottable.PaperLootableEntityInventory { // Paper
+     private final Inventory inventory;
+ 
+     public CraftChestBoat(CraftServer server, ChestBoat entity) {
+@@ -0,0 +0,0 @@ public class CraftChestBoat extends CraftBoat implements org.bukkit.entity.Chest
+         return this.getHandle().getLootTableSeed();
+     }
+ 
+-    private void setLootTable(LootTable table, long seed) {
++    public void setLootTable(LootTable table, long seed) { // Paper - change visibility since it overrides a public method
+         this.getHandle().setLootTable(CraftLootTable.bukkitToMinecraft(table));
+         this.getHandle().setLootTableSeed(seed);
+     }
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartChest.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartChest.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartChest.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartChest.java
+@@ -0,0 +0,0 @@ import org.bukkit.entity.minecart.StorageMinecart;
+ import org.bukkit.inventory.Inventory;
+ 
+ @SuppressWarnings("deprecation")
+-public class CraftMinecartChest extends CraftMinecartContainer implements StorageMinecart {
++public class CraftMinecartChest extends CraftMinecartContainer implements StorageMinecart, com.destroystokyo.paper.loottable.PaperLootableEntityInventory { // Paper
+     private final CraftInventory inventory;
+ 
+     public CraftMinecartChest(CraftServer server, MinecartChest entity) {
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartHopper.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartHopper.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartHopper.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartHopper.java
+@@ -0,0 +0,0 @@ import org.bukkit.craftbukkit.inventory.CraftInventory;
+ import org.bukkit.entity.minecart.HopperMinecart;
+ import org.bukkit.inventory.Inventory;
+ 
+-public final class CraftMinecartHopper extends CraftMinecartContainer implements HopperMinecart {
++public final class CraftMinecartHopper extends CraftMinecartContainer implements HopperMinecart, com.destroystokyo.paper.loottable.PaperLootableEntityInventory { // Paper
+     private final CraftInventory inventory;
+ 
+     public CraftMinecartHopper(CraftServer server, MinecartHopper entity) {

patches/server/Ocelot-despawns-should-honor-nametags-and-leash.patch

@@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: BillyGalbreath <Blake.Galbreath@GMail.com>
+Date: Mon, 31 Jul 2017 01:54:40 -0500
+Subject: [PATCH] Ocelot despawns should honor nametags and leash
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/animal/Ocelot.java b/src/main/java/net/minecraft/world/entity/animal/Ocelot.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/animal/Ocelot.java
++++ b/src/main/java/net/minecraft/world/entity/animal/Ocelot.java
+@@ -0,0 +0,0 @@ public class Ocelot extends Animal {
+ 
+     @Override
+     public boolean removeWhenFarAway(double distanceSquared) {
+-        return !this.isTrusting() && this.tickCount > 2400;
++        return !this.isTrusting() && this.tickCount > 2400 && !this.hasCustomName() && !this.isLeashed(); // Paper - honor name and leash
+     }
+ 
+     public static AttributeSupplier.Builder createAttributes() {

patches/server/Only-process-BlockPhysicsEvent-if-a-plugin-has-a-lis.patch

@@ -0,0 +1,70 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 28 Mar 2016 19:55:45 -0400
+Subject: [PATCH] Only process BlockPhysicsEvent if a plugin has a listener
+
+Saves on some object allocation and processing when no plugin listens to this
+
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+ 
+         while (iterator.hasNext()) {
+             ServerLevel worldserver = (ServerLevel) iterator.next();
++            worldserver.hasPhysicsEvent = org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - BlockPhysicsEvent
+ 
+             this.profiler.push(() -> {
+                 String s = String.valueOf(worldserver);
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements WorldGenLevel {
+     // CraftBukkit start
+     public final LevelStorageSource.LevelStorageAccess convertable;
+     public final UUID uuid;
++    public boolean hasPhysicsEvent = true; // Paper - BlockPhysicsEvent
+ 
+     public LevelChunk getChunkIfLoaded(int x, int z) {
+         return this.chunkSource.getChunk(x, z, false);
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+                 // CraftBukkit start
+                 iblockdata1.updateIndirectNeighbourShapes(this, blockposition, k, j - 1); // Don't call an event for the old block to limit event spam
+                 CraftWorld world = ((ServerLevel) this).getWorld();
+-                if (world != null) {
++                if (world != null && ((ServerLevel)this).hasPhysicsEvent) { // Paper - BlockPhysicsEvent
+                     BlockPhysicsEvent event = new BlockPhysicsEvent(world.getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ()), CraftBlockData.fromData(iblockdata));
+                     this.getCraftServer().getPluginManager().callEvent(event);
+ 
+diff --git a/src/main/java/net/minecraft/world/level/block/BushBlock.java b/src/main/java/net/minecraft/world/level/block/BushBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/BushBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/BushBlock.java
+@@ -0,0 +0,0 @@ public abstract class BushBlock extends Block {
+     protected BlockState updateShape(BlockState state, Direction direction, BlockState neighborState, LevelAccessor world, BlockPos pos, BlockPos neighborPos) {
+         // CraftBukkit start
+         if (!state.canSurvive(world, pos)) {
+-            if (!org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPhysicsEvent(world, pos).isCancelled()) {
++            if (!(world instanceof net.minecraft.server.level.ServerLevel && ((net.minecraft.server.level.ServerLevel) world).hasPhysicsEvent) || !org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPhysicsEvent(world, pos).isCancelled()) { // Paper
+                 return Blocks.AIR.defaultBlockState();
+             }
+         }
+diff --git a/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java b/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java
+@@ -0,0 +0,0 @@ public class DoublePlantBlock extends BushBlock {
+ 
+     protected static void preventDropFromBottomPart(Level world, BlockPos pos, BlockState state, Player player) {
+         // CraftBukkit start
+-        if (org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPhysicsEvent(world, pos).isCancelled()) {
++        if (((net.minecraft.server.level.ServerLevel)world).hasPhysicsEvent && org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPhysicsEvent(world, pos).isCancelled()) { // Paper
+             return;
+         }
+         // CraftBukkit end

patches/server/Optimise-BlockState-s-hashCode-equals.patch

@@ -0,0 +1,65 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alfie Cleveland <alfeh@me.com>
+Date: Fri, 19 Aug 2016 01:52:56 +0100
+Subject: [PATCH] Optimise BlockState's hashCode/equals
+
+These are singleton "single instance" objects. We can rely on
+object identity checks safely.
+
+Use a simpler optimized hashcode
+
+diff --git a/src/main/java/net/minecraft/world/level/block/state/properties/BooleanProperty.java b/src/main/java/net/minecraft/world/level/block/state/properties/BooleanProperty.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/state/properties/BooleanProperty.java
++++ b/src/main/java/net/minecraft/world/level/block/state/properties/BooleanProperty.java
+@@ -0,0 +0,0 @@ public class BooleanProperty extends Property<Boolean> {
+         return value.toString();
+     }
+ 
+-    @Override
+-    public boolean equals(Object object) {
++    public boolean equals_unused(Object object) { // Paper - Perf: Optimize hashCode/equals
+         if (this == object) {
+             return true;
+         } else {
+diff --git a/src/main/java/net/minecraft/world/level/block/state/properties/EnumProperty.java b/src/main/java/net/minecraft/world/level/block/state/properties/EnumProperty.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/state/properties/EnumProperty.java
++++ b/src/main/java/net/minecraft/world/level/block/state/properties/EnumProperty.java
+@@ -0,0 +0,0 @@ public class EnumProperty<T extends Enum<T> & StringRepresentable> extends Prope
+         return value.getSerializedName();
+     }
+ 
+-    @Override
+-    public boolean equals(Object object) {
++    public boolean equals_unused(Object object) { // Paper - Perf: Optimize hashCode/equals
+         if (this == object) {
+             return true;
+         } else {
+diff --git a/src/main/java/net/minecraft/world/level/block/state/properties/IntegerProperty.java b/src/main/java/net/minecraft/world/level/block/state/properties/IntegerProperty.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/state/properties/IntegerProperty.java
++++ b/src/main/java/net/minecraft/world/level/block/state/properties/IntegerProperty.java
+@@ -0,0 +0,0 @@ public class IntegerProperty extends Property<Integer> {
+         return this.values;
+     }
+ 
+-    @Override
+-    public boolean equals(Object object) {
++    public boolean equals_unused(Object object) { // Paper - Perf: Optimize hashCode/equals
+         if (this == object) {
+             return true;
+         } else {
+diff --git a/src/main/java/net/minecraft/world/level/block/state/properties/Property.java b/src/main/java/net/minecraft/world/level/block/state/properties/Property.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/state/properties/Property.java
++++ b/src/main/java/net/minecraft/world/level/block/state/properties/Property.java
+@@ -0,0 +0,0 @@ public abstract class Property<T extends Comparable<T>> {
+ 
+     @Override
+     public boolean equals(Object object) {
+-        return this == object || object instanceof Property<?> property && this.clazz.equals(property.clazz) && this.name.equals(property.name);
++        return this == object; // Paper - Perf: Optimize hashCode/equals
+     }
+ 
+     @Override

patches/server/Optimize-DataBits.patch

@@ -0,0 +1,118 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Tue, 5 Apr 2016 21:38:58 -0400
+Subject: [PATCH] Optimize DataBits
+
+Remove Debug checks as these are super hot and causing noticeable hits
+
+Before: http://i.imgur.com/nQsMzAE.png
+After: http://i.imgur.com/nJ46crB.png
+
+Optimize redundant converting of static fields into an unsigned long each call by precomputing it in ctor
+
+diff --git a/src/main/java/net/minecraft/util/SimpleBitStorage.java b/src/main/java/net/minecraft/util/SimpleBitStorage.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/util/SimpleBitStorage.java
++++ b/src/main/java/net/minecraft/util/SimpleBitStorage.java
+@@ -0,0 +0,0 @@ public class SimpleBitStorage implements BitStorage {
+     private final long mask;
+     private final int size;
+     private final int valuesPerLong;
+-    private final int divideMul;
+-    private final int divideAdd;
++    private final int divideMul; private final long divideMulUnsigned; // Paper - Perf: Optimize SimpleBitStorage; referenced in b(int) with 2 Integer.toUnsignedLong calls
++    private final int divideAdd; private final long divideAddUnsigned; // Paper - Perf: Optimize SimpleBitStorage
+     private final int divideShift;
+ 
+     public SimpleBitStorage(int elementBits, int size, int[] data) {
+@@ -0,0 +0,0 @@ public class SimpleBitStorage implements BitStorage {
+         this.mask = (1L << elementBits) - 1L;
+         this.valuesPerLong = (char)(64 / elementBits);
+         int i = 3 * (this.valuesPerLong - 1);
+-        this.divideMul = MAGIC[i + 0];
+-        this.divideAdd = MAGIC[i + 1];
++        this.divideMul = MAGIC[i + 0]; this.divideMulUnsigned = Integer.toUnsignedLong(this.divideMul); // Paper - Perf: Optimize SimpleBitStorage
++        this.divideAdd = MAGIC[i + 1]; this.divideAddUnsigned = Integer.toUnsignedLong(this.divideAdd); // Paper - Perf: Optimize SimpleBitStorage
+         this.divideShift = MAGIC[i + 2];
+         int j = (size + this.valuesPerLong - 1) / this.valuesPerLong;
+         if (data != null) {
+@@ -0,0 +0,0 @@ public class SimpleBitStorage implements BitStorage {
+     }
+ 
+     private int cellIndex(int index) {
+-        long l = Integer.toUnsignedLong(this.divideMul);
+-        long m = Integer.toUnsignedLong(this.divideAdd);
+-        return (int)((long)index * l + m >> 32 >> this.divideShift);
++        //long l = Integer.toUnsignedLong(this.divideMul); // Paper - Perf: Optimize SimpleBitStorage
++        //long m = Integer.toUnsignedLong(this.divideAdd); // Paper - Perf: Optimize SimpleBitStorage
++        return (int) (index * this.divideMulUnsigned + this.divideAddUnsigned >> 32 >> this.divideShift); // Paper - Perf: Optimize SimpleBitStorage
+     }
+ 
+     @Override
+-    public int getAndSet(int index, int value) {
+-        Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
+-        Validate.inclusiveBetween(0L, this.mask, (long)value);
++    public final int getAndSet(int index, int value) { // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, this.mask, (long)value); // Paper - Perf: Optimize SimpleBitStorage
+         int i = this.cellIndex(index);
+         long l = this.data[i];
+         int j = (index - i * this.valuesPerLong) * this.bits;
+@@ -0,0 +0,0 @@ public class SimpleBitStorage implements BitStorage {
+     }
+ 
+     @Override
+-    public void set(int index, int value) {
+-        Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
+-        Validate.inclusiveBetween(0L, this.mask, (long)value);
++    public final void set(int index, int value) { // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, this.mask, (long)value); // Paper - Perf: Optimize SimpleBitStorage
+         int i = this.cellIndex(index);
+         long l = this.data[i];
+         int j = (index - i * this.valuesPerLong) * this.bits;
+@@ -0,0 +0,0 @@ public class SimpleBitStorage implements BitStorage {
+     }
+ 
+     @Override
+-    public int get(int index) {
+-        Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
++    public final int get(int index) { // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
+         int i = this.cellIndex(index);
+         long l = this.data[i];
+         int j = (index - i * this.valuesPerLong) * this.bits;
+diff --git a/src/main/java/net/minecraft/util/ZeroBitStorage.java b/src/main/java/net/minecraft/util/ZeroBitStorage.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/util/ZeroBitStorage.java
++++ b/src/main/java/net/minecraft/util/ZeroBitStorage.java
+@@ -0,0 +0,0 @@ public class ZeroBitStorage implements BitStorage {
+     }
+ 
+     @Override
+-    public int getAndSet(int index, int value) {
+-        Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
+-        Validate.inclusiveBetween(0L, 0L, (long)value);
++    public final int getAndSet(int index, int value) { // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, 0L, (long)value); // Paper - Perf: Optimize SimpleBitStorage
+         return 0;
+     }
+ 
+     @Override
+-    public void set(int index, int value) {
+-        Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
+-        Validate.inclusiveBetween(0L, 0L, (long)value);
++    public final void set(int index, int value) { // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, 0L, (long)value); // Paper - Perf: Optimize SimpleBitStorage
+     }
+ 
+     @Override
+-    public int get(int index) {
+-        Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
++    public final int get(int index) { // Paper - Perf: Optimize SimpleBitStorage
++        //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
+         return 0;
+     }
+ 

patches/server/Optimize-Level.hasChunkAt-BlockPosition-Z.patch

@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 2 Dec 2016 00:11:43 -0500
+Subject: [PATCH] Optimize Level.hasChunkAt(BlockPosition)Z
+
+Reduce method invocations for World.isLoaded(BlockPosition)Z
+
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+         return chunk == null ? null : chunk.getFluidState(blockposition);
+     }
+ 
++    @Override
++    public final boolean hasChunkAt(BlockPos pos) {
++        return getChunkIfLoaded(pos.getX() >> 4, pos.getZ() >> 4) != null; // Paper - Perf: Optimize Level.hasChunkAt(BlockPosition)Z
++    }
++
+     public final boolean isLoadedAndInBounds(BlockPos blockposition) { // Paper - final for inline
+         return getWorldBorder().isWithinBounds(blockposition) && getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null;
+     }

patches/server/Option-to-use-vanilla-per-world-scoreboard-coloring-.patch

@@ -0,0 +1,50 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Wed, 6 Apr 2016 01:04:23 -0500
+Subject: [PATCH] Option to use vanilla per-world scoreboard coloring on names
+
+This change is basically a bandaid to fix CB's complete and utter lack
+of support for vanilla scoreboard name modifications.
+
+In the future, finding a way to merge the vanilla expectations in with
+bukkit's concept of a display name would be preferable. There was a PR
+for this on CB at one point but I can't find it. We may need to do this
+ourselves at some point in the future.
+
+diff --git a/src/main/java/io/papermc/paper/adventure/ChatProcessor.java b/src/main/java/io/papermc/paper/adventure/ChatProcessor.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/io/papermc/paper/adventure/ChatProcessor.java
++++ b/src/main/java/io/papermc/paper/adventure/ChatProcessor.java
+@@ -0,0 +0,0 @@ import net.kyori.adventure.audience.ForwardingAudience;
+ import net.kyori.adventure.key.Key;
+ import net.kyori.adventure.text.Component;
+ import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
++import net.minecraft.ChatFormatting;
+ import net.minecraft.Optionull;
+ import net.minecraft.Util;
+ import net.minecraft.core.registries.Registries;
+@@ -0,0 +0,0 @@ import net.minecraft.resources.ResourceLocation;
+ import net.minecraft.server.MinecraftServer;
+ import net.minecraft.server.level.ServerPlayer;
+ import org.bukkit.command.ConsoleCommandSender;
++import org.bukkit.craftbukkit.CraftWorld;
+ import org.bukkit.craftbukkit.entity.CraftPlayer;
+ import org.bukkit.craftbukkit.util.LazyPlayerSet;
+ import org.bukkit.craftbukkit.util.Waitable;
+@@ -0,0 +0,0 @@ public final class ChatProcessor {
+     }
+ 
+     static String legacyDisplayName(final CraftPlayer player) {
++        if (((org.bukkit.craftbukkit.CraftWorld) player.getWorld()).getHandle().paperConfig().scoreboards.useVanillaWorldScoreboardNameColoring) {
++            return legacySection().serialize(player.teamDisplayName()) + ChatFormatting.RESET;
++        }
+         return player.getDisplayName();
+     }
+ 
+     static Component displayName(final CraftPlayer player) {
++        if (((CraftWorld) player.getWorld()).getHandle().paperConfig().scoreboards.useVanillaWorldScoreboardNameColoring) {
++            return player.teamDisplayName();
++        }
+         return player.displayName();
+     }
+ 

patches/server/Optional-TNT-doesn-t-move-in-water.patch

@@ -0,0 +1,50 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Sun, 22 May 2016 20:20:55 -0500
+Subject: [PATCH] Optional TNT doesn't move in water
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
++++ b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+@@ -0,0 +0,0 @@ public class PrimedTnt extends Entity implements TraceableEntity {
+             }
+         }
+ 
++        // Paper start - Option to prevent TNT from moving in water
++        if (!this.isRemoved() && this.wasTouchingWater && this.level().paperConfig().fixes.preventTntFromMovingInWater) {
++            /*
++             * Author: Jedediah Smith <jedediah@silencegreys.com>
++             */
++            // Send position and velocity updates to nearby players on every tick while the TNT is in water.
++            // This does pretty well at keeping their clients in sync with the server.
++            net.minecraft.server.level.ChunkMap.TrackedEntity ete = ((net.minecraft.server.level.ServerLevel)this.level()).getChunkSource().chunkMap.entityMap.get(this.getId());
++            if (ete != null) {
++                net.minecraft.network.protocol.game.ClientboundSetEntityMotionPacket velocityPacket = new net.minecraft.network.protocol.game.ClientboundSetEntityMotionPacket(this);
++                net.minecraft.network.protocol.game.ClientboundTeleportEntityPacket positionPacket = new net.minecraft.network.protocol.game.ClientboundTeleportEntityPacket(this);
++
++                ete.seenBy.stream()
++                    .filter(viewer -> (viewer.getPlayer().getX() - this.getX()) * (viewer.getPlayer().getY() - this.getY()) * (viewer.getPlayer().getZ() - this.getZ()) < 16 * 16)
++                    .forEach(viewer -> {
++                        viewer.send(velocityPacket);
++                        viewer.send(positionPacket);
++                    });
++            }
++        }
++        // Paper end - Option to prevent TNT from moving in water
+     }
+ 
+     private void explode() {
+@@ -0,0 +0,0 @@ public class PrimedTnt extends Entity implements TraceableEntity {
+     public BlockState getBlockState() {
+         return (BlockState) this.entityData.get(PrimedTnt.DATA_BLOCK_STATE_ID);
+     }
++
++    // Paper start - Option to prevent TNT from moving in water
++    @Override
++    public boolean isPushedByFluid() {
++        return !level().paperConfig().fixes.preventTntFromMovingInWater && super.isPushedByFluid();
++    }
++    // Paper end - Option to prevent TNT from moving in water
+ }

patches/server/Player-Tab-List-and-Title-APIs.patch

@@ -0,0 +1,109 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Techcable <Techcable@outlook.com>
+Date: Thu, 3 Mar 2016 02:32:10 -0600
+Subject: [PATCH] Player Tab List and Title APIs
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -0,0 +0,0 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+         }
+     }
+ 
++    // Paper start
++    @Override
++    public void setPlayerListHeaderFooter(BaseComponent[] header, BaseComponent[] footer) {
++         if (header != null) {
++             String headerJson = net.md_5.bungee.chat.ComponentSerializer.toString(header);
++             playerListHeader = net.kyori.adventure.text.serializer.gson.GsonComponentSerializer.gson().deserialize(headerJson);
++         } else {
++             playerListHeader = null;
++         }
++
++        if (footer != null) {
++             String footerJson = net.md_5.bungee.chat.ComponentSerializer.toString(footer);
++             playerListFooter = net.kyori.adventure.text.serializer.gson.GsonComponentSerializer.gson().deserialize(footerJson);
++        } else {
++             playerListFooter = null;
++         }
++
++         updatePlayerListHeaderFooter();
++    }
++
++    @Override
++    public void setPlayerListHeaderFooter(BaseComponent header, BaseComponent footer) {
++        this.setPlayerListHeaderFooter(header == null ? null : new BaseComponent[]{header},
++                footer == null ? null : new BaseComponent[]{footer});
++    }
++
++
++    @Override
++    public void setTitleTimes(int fadeInTicks, int stayTicks, int fadeOutTicks) {
++        getHandle().connection.send(new ClientboundSetTitlesAnimationPacket(fadeInTicks, stayTicks, fadeOutTicks));
++    }
++
++    @Override
++    public void setSubtitle(BaseComponent[] subtitle) {
++        final ClientboundSetSubtitleTextPacket packet = new ClientboundSetSubtitleTextPacket(org.bukkit.craftbukkit.util.CraftChatMessage.fromJSON(net.md_5.bungee.chat.ComponentSerializer.toString(subtitle)));
++        getHandle().connection.send(packet);
++    }
++
++    @Override
++    public void setSubtitle(BaseComponent subtitle) {
++        setSubtitle(new BaseComponent[]{subtitle});
++    }
++
++    @Override
++    public void showTitle(BaseComponent[] title) {
++        final ClientboundSetTitleTextPacket packet = new ClientboundSetTitleTextPacket(org.bukkit.craftbukkit.util.CraftChatMessage.fromJSON(net.md_5.bungee.chat.ComponentSerializer.toString(title)));
++        getHandle().connection.send(packet);
++    }
++
++    @Override
++    public void showTitle(BaseComponent title) {
++        showTitle(new BaseComponent[]{title});
++    }
++
++    @Override
++    public void showTitle(BaseComponent[] title, BaseComponent[] subtitle, int fadeInTicks, int stayTicks, int fadeOutTicks) {
++        setTitleTimes(fadeInTicks, stayTicks, fadeOutTicks);
++        setSubtitle(subtitle);
++        showTitle(title);
++    }
++
++    @Override
++    public void showTitle(BaseComponent title, BaseComponent subtitle, int fadeInTicks, int stayTicks, int fadeOutTicks) {
++        setTitleTimes(fadeInTicks, stayTicks, fadeOutTicks);
++        setSubtitle(subtitle);
++        showTitle(title);
++    }
++
++    @Override
++    public void sendTitle(com.destroystokyo.paper.Title title) {
++        Preconditions.checkNotNull(title, "Title is null");
++        setTitleTimes(title.getFadeIn(), title.getStay(), title.getFadeOut());
++        setSubtitle(title.getSubtitle() == null ? new BaseComponent[0] : title.getSubtitle());
++        showTitle(title.getTitle());
++    }
++
++    @Override
++    public void updateTitle(com.destroystokyo.paper.Title title) {
++        Preconditions.checkNotNull(title, "Title is null");
++        setTitleTimes(title.getFadeIn(), title.getStay(), title.getFadeOut());
++        if (title.getSubtitle() != null) {
++            setSubtitle(title.getSubtitle());
++        }
++        showTitle(title.getTitle());
++    }
++
++    @Override
++    public void hideTitle() {
++        getHandle().connection.send(new ClientboundClearTitlesPacket(false));
++    }
++    // Paper end
++
+     @Override
+     public String getDisplayName() {
+         if(true) return io.papermc.paper.adventure.DisplayNames.getLegacy(this); // Paper

patches/server/PlayerAttemptPickupItemEvent.patch

@@ -0,0 +1,41 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: BillyGalbreath <Blake.Galbreath@GMail.com>
+Date: Sun, 11 Jun 2017 16:30:30 -0500
+Subject: [PATCH] PlayerAttemptPickupItemEvent
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
++++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+@@ -0,0 +0,0 @@ import org.bukkit.event.entity.EntityPickupItemEvent;
+ import org.bukkit.event.entity.EntityRemoveEvent;
+ import org.bukkit.event.player.PlayerPickupItemEvent;
+ // CraftBukkit end
++import org.bukkit.event.player.PlayerAttemptPickupItemEvent; // Paper
+ 
+ public class ItemEntity extends Entity implements TraceableEntity {
+ 
+@@ -0,0 +0,0 @@ public class ItemEntity extends Entity implements TraceableEntity {
+             int remaining = i - canHold;
+             boolean flyAtPlayer = false; // Paper
+ 
++            // Paper start - PlayerAttemptPickupItemEvent
++            if (this.pickupDelay <= 0) {
++                PlayerAttemptPickupItemEvent attemptEvent = new PlayerAttemptPickupItemEvent((org.bukkit.entity.Player) player.getBukkitEntity(), (org.bukkit.entity.Item) this.getBukkitEntity(), remaining);
++                this.level().getCraftServer().getPluginManager().callEvent(attemptEvent);
++
++                flyAtPlayer = attemptEvent.getFlyAtPlayer();
++                if (attemptEvent.isCancelled()) {
++                    if (flyAtPlayer) {
++                        player.take(this, i);
++                    }
++
++                    return;
++                }
++            }
++            // Paper end - PlayerAttemptPickupItemEvent
++
+             if (this.pickupDelay <= 0 && canHold > 0) {
+                 itemstack.setCount(canHold);
+                 // Call legacy event

patches/server/PlayerNaturallySpawnCreaturesEvent.patch

@@ -0,0 +1,73 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sun, 14 Jan 2018 17:36:02 -0500
+Subject: [PATCH] PlayerNaturallySpawnCreaturesEvent
+
+This event can be used for when you want to exclude a certain player
+from triggering monster spawns on a server.
+
+Also a highly more effecient way to blanket block spawns in a world
+
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
++++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -0,0 +0,0 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+         chunkRange = (chunkRange > this.level.spigotConfig.viewDistance) ? (byte) this.level.spigotConfig.viewDistance : chunkRange;
+         chunkRange = (chunkRange > 8) ? 8 : chunkRange;
+ 
+-        double blockRange = (reducedRange) ? Math.pow(chunkRange << 4, 2) : 16384.0D;
++        final int finalChunkRange = chunkRange; // Paper for lambda below
++        //double blockRange = (reducedRange) ? Math.pow(chunkRange << 4, 2) : 16384.0D; // Paper - use from event
++        double blockRange = 16384.0D; // Paper
+         // Spigot end
+         if (!this.distanceManager.hasPlayersNearby(chunkcoordintpair.toLong())) {
+             return false;
+@@ -0,0 +0,0 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+                 }
+ 
+                 entityplayer = (ServerPlayer) iterator.next();
++                // Paper start - PlayerNaturallySpawnCreaturesEvent
++                com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event;
++                blockRange = 16384.0D;
++                if (reducedRange) {
++                    event = entityplayer.playerNaturallySpawnedEvent;
++                    if (event == null || event.isCancelled()) return false;
++                    blockRange = (double) ((event.getSpawnRadius() << 4) * (event.getSpawnRadius() << 4));
++                }
++                // Paper end - PlayerNaturallySpawnCreaturesEvent
+             } while (!this.playerIsCloseEnoughForSpawning(entityplayer, chunkcoordintpair, blockRange)); // Spigot
+ 
+             return true;
+diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
++++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+@@ -0,0 +0,0 @@ public class ServerChunkCache extends ChunkSource {
+                 boolean flag = this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING) && !this.level.players().isEmpty(); // CraftBukkit
+ 
+                 Util.shuffle(list, this.level.random);
++                // Paper start - PlayerNaturallySpawnCreaturesEvent
++                int chunkRange = level.spigotConfig.mobSpawnRange;
++                chunkRange = (chunkRange > level.spigotConfig.viewDistance) ? (byte) level.spigotConfig.viewDistance : chunkRange;
++                chunkRange = Math.min(chunkRange, 8);
++                for (ServerPlayer entityPlayer : this.level.players()) {
++                    entityPlayer.playerNaturallySpawnedEvent = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(entityPlayer.getBukkitEntity(), (byte) chunkRange);
++                    entityPlayer.playerNaturallySpawnedEvent.callEvent();
++                }
++                // Paper end - PlayerNaturallySpawnCreaturesEvent
+                 int l = this.level.getGameRules().getInt(GameRules.RULE_RANDOMTICKING);
+                 boolean flag1 = this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) != 0L && this.level.getLevelData().getGameTime() % this.level.ticksPerSpawnCategory.getLong(org.bukkit.entity.SpawnCategory.ANIMAL) == 0L; // CraftBukkit
+                 Iterator iterator1 = list.iterator();
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -0,0 +0,0 @@ public class ServerPlayer extends Player {
+     // CraftBukkit end
+     public boolean isRealPlayer; // Paper
+     public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> cachedSingleHashSet; // Paper
++    public com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent playerNaturallySpawnedEvent; // Paper - PlayerNaturallySpawnCreaturesEvent
+ 
+     public ServerPlayer(MinecraftServer server, ServerLevel world, GameProfile profile, ClientInformation clientOptions) {
+         super(world, world.getSharedSpawnPos(), world.getSharedSpawnAngle(), profile);

patches/server/PlayerPickupExperienceEvent.patch

@@ -0,0 +1,20 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Tue, 19 Dec 2017 22:02:53 -0500
+Subject: [PATCH] PlayerPickupExperienceEvent
+
+Allows plugins to cancel a player picking up an experience orb
+
+diff --git a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
++++ b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
+@@ -0,0 +0,0 @@ public class ExperienceOrb extends Entity {
+     @Override
+     public void playerTouch(Player player) {
+         if (!this.level().isClientSide) {
+-            if (player.takeXpDelay == 0) {
++            if (player.takeXpDelay == 0 && new com.destroystokyo.paper.event.player.PlayerPickupExperienceEvent(((net.minecraft.server.level.ServerPlayer) player).getBukkitEntity(), (org.bukkit.entity.ExperienceOrb) this.getBukkitEntity()).callEvent()) { // Paper - PlayerPickupExperienceEvent
+                 player.takeXpDelay = CraftEventFactory.callPlayerXpCooldownEvent(player, 2, PlayerExpCooldownChangeEvent.ChangeReason.PICKUP_ORB).getNewCooldown(); // CraftBukkit - entityhuman.takeXpDelay = 2;
+                 player.take(this, 1);
+                 int i = this.repairPlayerItems(player, this.value);

patches/server/PlayerPickupItemEvent-setFlyAtPlayer.patch

@@ -0,0 +1,41 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: BillyGalbreath <Blake.Galbreath@GMail.com>
+Date: Sun, 7 May 2017 06:26:09 -0500
+Subject: [PATCH] PlayerPickupItemEvent#setFlyAtPlayer
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
++++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+@@ -0,0 +0,0 @@ public class ItemEntity extends Entity implements TraceableEntity {
+             // CraftBukkit start - fire PlayerPickupItemEvent
+             int canHold = player.getInventory().canHold(itemstack);
+             int remaining = i - canHold;
++            boolean flyAtPlayer = false; // Paper
+ 
+             if (this.pickupDelay <= 0 && canHold > 0) {
+                 itemstack.setCount(canHold);
+@@ -0,0 +0,0 @@ public class ItemEntity extends Entity implements TraceableEntity {
+                 PlayerPickupItemEvent playerEvent = new PlayerPickupItemEvent((Player) player.getBukkitEntity(), (org.bukkit.entity.Item) this.getBukkitEntity(), remaining);
+                 playerEvent.setCancelled(!playerEvent.getPlayer().getCanPickupItems());
+                 this.level().getCraftServer().getPluginManager().callEvent(playerEvent);
++                flyAtPlayer = playerEvent.getFlyAtPlayer(); // Paper
+                 if (playerEvent.isCancelled()) {
+                     itemstack.setCount(i); // SPIGOT-5294 - restore count
++                    // Paper start
++                    if (flyAtPlayer) {
++                        player.take(this, i);
++                    }
++                    // Paper end
+                     return;
+                 }
+ 
+@@ -0,0 +0,0 @@ public class ItemEntity extends Entity implements TraceableEntity {
+             // CraftBukkit end
+ 
+             if (this.pickupDelay == 0 && (this.target == null || this.target.equals(player.getUUID())) && player.getInventory().add(itemstack)) {
++                if (flyAtPlayer) // Paper - PlayerPickupItemEvent
+                 player.take(this, i);
+                 if (itemstack.isEmpty()) {
+                     this.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause

patches/server/PlayerTeleportEndGatewayEvent.patch

@@ -0,0 +1,26 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sat, 31 Dec 2016 21:44:50 -0500
+Subject: [PATCH] PlayerTeleportEndGatewayEvent
+
+Allows you to access the Gateway being used in a teleport event
+Fix the offset used for player teleportation
+
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/TheEndGatewayBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/TheEndGatewayBlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/TheEndGatewayBlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/TheEndGatewayBlockEntity.java
+@@ -0,0 +0,0 @@ public class TheEndGatewayBlockEntity extends TheEndPortalBlockEntity {
+                 // CraftBukkit start - Fire PlayerTeleportEvent/EntityTeleportEvent
+                 if (entity1 instanceof ServerPlayer) {
+                     org.bukkit.craftbukkit.entity.CraftPlayer player = (CraftPlayer) entity1.getBukkitEntity();
+-                    org.bukkit.Location location = CraftLocation.toBukkit(blockposition1, world.getWorld()).add(0.5D, 0.5D, 0.5D);
++                    org.bukkit.Location location = CraftLocation.toBukkit(blockposition1, world.getWorld()).add(0.5D, 0, 0.5D); // Paper - use the right Y offset
+                     location.setPitch(player.getLocation().getPitch());
+                     location.setYaw(player.getLocation().getYaw());
+ 
+-                    PlayerTeleportEvent teleEvent = new PlayerTeleportEvent(player, player.getLocation(), location, PlayerTeleportEvent.TeleportCause.END_GATEWAY);
++                    PlayerTeleportEvent teleEvent = new com.destroystokyo.paper.event.player.PlayerTeleportEndGatewayEvent(player, player.getLocation(), location, new org.bukkit.craftbukkit.block.CraftEndGateway(worldserver.getWorld(), blockEntity)); // Paper
+                     Bukkit.getPluginManager().callEvent(teleEvent);
+                     if (teleEvent.isCancelled()) {
+                         return;

patches/server/Prevent-Pathfinding-out-of-World-Border.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 19 Dec 2016 23:07:42 -0500
+Subject: [PATCH] Prevent Pathfinding out of World Border
+
+This prevents Entities from trying to run outside of the World Border
+
+TODO: This doesn't prevent the pathfinder from using blocks outside the world border as nodes. We can fix this
+by adding code to all overrides in:
+    NodeEvaluator:
+    public abstract BlockPathTypes getBlockPathType(BlockGetter world, int x, int y, int z);
+
+to return BLOCKED if it is outside the world border.
+
+diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
++++ b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
+@@ -0,0 +0,0 @@ public abstract class PathNavigation {
+             // Paper start - EntityPathfindEvent
+             boolean copiedSet = false;
+             for (BlockPos possibleTarget : positions) {
+-                if (!new com.destroystokyo.paper.event.entity.EntityPathfindEvent(this.mob.getBukkitEntity(),
++                if (!this.mob.getCommandSenderWorld().getWorldBorder().isWithinBounds(possibleTarget) || !new com.destroystokyo.paper.event.entity.EntityPathfindEvent(this.mob.getBukkitEntity(), // Paper - don't path out of world border
+                     io.papermc.paper.util.MCUtil.toLocation(this.mob.level(), possibleTarget), target == null ? null : target.getBukkitEntity()).callEvent()) {
+                     if (!copiedSet) {
+                         copiedSet = true;

patches/server/Prevent-logins-from-being-processed-when-the-player-.patch

@@ -0,0 +1,21 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: killme <killme-git@ibts.me>
+Date: Sun, 12 Nov 2017 19:40:01 +0100
+Subject: [PATCH] Prevent logins from being processed when the player has
+ disconnected
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+         }
+         // Paper end - Do not allow logins while the server is shutting down
+         if (this.state == ServerLoginPacketListenerImpl.State.VERIFYING) {
++            if (this.connection.isConnected()) { // Paper - prevent logins to be processed even though disconnect was called
+             this.verifyLoginAndFinishConnectionSetup((GameProfile) Objects.requireNonNull(this.authenticatedProfile));
++            } // Paper - prevent logins to be processed even though disconnect was called
+         }
+ 
+         // CraftBukkit start

patches/server/Profile-Lookup-Events.patch

@@ -0,0 +1,73 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sat, 17 Jun 2017 17:00:32 -0400
+Subject: [PATCH] Profile Lookup Events
+
+Adds a Pre Lookup Event and a Post Lookup Event so that plugins may prefill in profile data, and cache the responses from
+profiles that had to be looked up.
+
+diff --git a/src/main/java/com/destroystokyo/paper/profile/PaperGameProfileRepository.java b/src/main/java/com/destroystokyo/paper/profile/PaperGameProfileRepository.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/com/destroystokyo/paper/profile/PaperGameProfileRepository.java
++++ b/src/main/java/com/destroystokyo/paper/profile/PaperGameProfileRepository.java
+@@ -0,0 +0,0 @@
+ package com.destroystokyo.paper.profile;
+ 
++import com.destroystokyo.paper.event.profile.LookupProfileEvent;
++import com.destroystokyo.paper.event.profile.PreLookupProfileEvent;
++import com.google.common.collect.Sets;
+ import com.mojang.authlib.Environment;
++import com.mojang.authlib.GameProfile;
+ import com.mojang.authlib.ProfileLookupCallback;
+ import com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository;
+ import java.net.Proxy;
++import java.util.Set;
+ 
+ public class PaperGameProfileRepository extends YggdrasilGameProfileRepository {
+     public PaperGameProfileRepository(Proxy proxy, Environment environment) {
+@@ -0,0 +0,0 @@ public class PaperGameProfileRepository extends YggdrasilGameProfileRepository {
+ 
+     @Override
+     public void findProfilesByNames(String[] names, ProfileLookupCallback callback) {
+-        super.findProfilesByNames(names, callback);
++        Set<String> unfoundNames = Sets.newHashSet();
++        for (String name : names) {
++            PreLookupProfileEvent event = new PreLookupProfileEvent(name);
++            event.callEvent();
++            if (event.getUUID() != null) {
++                // Plugin provided UUID, we can skip network call.
++                GameProfile gameprofile = new GameProfile(event.getUUID(), name);
++                // We might even have properties!
++                Set<ProfileProperty> profileProperties = event.getProfileProperties();
++                if (!profileProperties.isEmpty()) {
++                    for (ProfileProperty property : profileProperties) {
++                        gameprofile.getProperties().put(property.getName(), CraftPlayerProfile.asAuthlib(property));
++                    }
++                }
++                callback.onProfileLookupSucceeded(gameprofile);
++            } else {
++                unfoundNames.add(name);
++            }
++        }
++
++        // Some things were not found.... Proceed to look up.
++        if (!unfoundNames.isEmpty()) {
++            String[] namesArr = unfoundNames.toArray(new String[unfoundNames.size()]);
++            super.findProfilesByNames(namesArr, new PreProfileLookupCallback(callback));
++        }
++    }
++
++    private record PreProfileLookupCallback(ProfileLookupCallback callback) implements ProfileLookupCallback {
++        @Override
++        public void onProfileLookupSucceeded(GameProfile gameProfile) {
++            PlayerProfile from = CraftPlayerProfile.asBukkitMirror(gameProfile);
++            new LookupProfileEvent(from).callEvent();
++            this.callback.onProfileLookupSucceeded(gameProfile);
++        }
++
++        @Override
++        public void onProfileLookupFailed(final String profileName, final Exception exception) {
++            this.callback.onProfileLookupFailed(profileName, exception);
++        }
+     }
+ }

patches/server/ProfileWhitelistVerifyEvent.patch

@@ -0,0 +1,48 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 3 Jul 2017 18:11:10 -0500
+Subject: [PATCH] ProfileWhitelistVerifyEvent
+
+
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
++++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+ 
+             // return chatmessage;
+             event.disallow(PlayerLoginEvent.Result.KICK_BANNED, io.papermc.paper.adventure.PaperAdventure.asAdventure(ichatmutablecomponent)); // Paper - Adventure
+-        } else if (!this.isWhiteListed(gameprofile)) {
+-            ichatmutablecomponent = Component.translatable("multiplayer.disconnect.not_whitelisted");
+-            event.disallow(PlayerLoginEvent.Result.KICK_WHITELIST, net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(org.spigotmc.SpigotConfig.whitelistMessage)); // Spigot // Paper - Adventure
++        } else if (!this.isWhiteListed(gameprofile, event)) { // Paper - ProfileWhitelistVerifyEvent
++            //ichatmutablecomponent = Component.translatable("multiplayer.disconnect.not_whitelisted"); // Paper
++            //event.disallow(PlayerLoginEvent.Result.KICK_WHITELIST, net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(org.spigotmc.SpigotConfig.whitelistMessage)); // Spigot // Paper - Adventure - moved to isWhitelisted
+         } else if (this.getIpBans().isBanned(socketaddress) && !this.getIpBans().get(socketaddress).hasExpired()) {
+             IpBanListEntry ipbanentry = this.ipBans.get(socketaddress);
+ 
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+     }
+ 
+     public boolean isWhiteListed(GameProfile profile) {
+-        return !this.doWhiteList || this.ops.contains(profile) || this.whitelist.contains(profile);
++        // Paper start - ProfileWhitelistVerifyEvent
++        return isWhiteListed(profile, null);
++    }
++    public boolean isWhiteListed(GameProfile gameprofile, org.bukkit.event.player.PlayerLoginEvent loginEvent) {
++        boolean isOp = this.ops.contains(gameprofile);
++        boolean isWhitelisted = !this.doWhiteList || isOp || this.whitelist.contains(gameprofile);
++        final com.destroystokyo.paper.event.profile.ProfileWhitelistVerifyEvent event;
++        event = new com.destroystokyo.paper.event.profile.ProfileWhitelistVerifyEvent(io.papermc.paper.util.MCUtil.toBukkit(gameprofile), this.doWhiteList, isWhitelisted, isOp, org.spigotmc.SpigotConfig.whitelistMessage);
++        event.callEvent();
++        if (!event.isWhitelisted()) {
++            if (loginEvent != null) {
++                loginEvent.disallow(PlayerLoginEvent.Result.KICK_WHITELIST, net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(event.getKickMessage() == null ? org.spigotmc.SpigotConfig.whitelistMessage : event.getKickMessage()));
++            }
++            return false;
++        }
++        return true;
++        // Paper end - ProfileWhitelistVerifyEvent
+     }
+ 
+     public boolean isOp(GameProfile profile) {

patches/server/Properly-fix-item-duplication-bug.patch

@@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alfie Cleveland <alfeh@me.com>
+Date: Tue, 27 Dec 2016 01:57:57 +0000
+Subject: [PATCH] Properly fix item duplication bug
+
+Credit to prplz for figuring out the real issue
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -0,0 +0,0 @@ public class ServerPlayer extends Player {
+ 
+     @Override
+     public boolean isImmobile() {
+-        return super.isImmobile() || !this.getBukkitEntity().isOnline();
++        return super.isImmobile() || (this.connection != null && this.connection.isDisconnected()); // Paper - Fix duplication bugs
+     }
+ 
+     @Override
+diff --git a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+@@ -0,0 +0,0 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+     }
+ 
+     public final boolean isDisconnected() {
+-        return !this.player.joining && !this.connection.isConnected();
++        return (!this.player.joining && !this.connection.isConnected()) || this.processedDisconnect; // Paper - Fix duplication bugs
+     }
+     // CraftBukkit end
+ 

patches/server/Properly-handle-async-calls-to-restart-the-server.patch

@@ -0,0 +1,290 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zach Brown <1254957+zachbr@users.noreply.github.com>
+Date: Fri, 12 May 2017 23:34:11 -0500
+Subject: [PATCH] Properly handle async calls to restart the server
+
+The watchdog thread calls the server restart function asynchronously. Prior to
+this change, it attempted to do several non-safe operations from the watchdog
+thread, rather than the main. Specifically, because of a separate upstream change,
+it causes player entities to be ticked asynchronously, among other things.
+
+This is dangerous.
+
+This patch moves the old handling into a synchronous variant, for calls from the
+restart command, and adds separate handling for async calls, such as those from
+the watchdog thread.
+
+When calling from the watchdog thread, we cannot assume the main thread is in a
+tickable state; it may be completely deadlocked. In order to handle this, we mark
+the server as stopping, in order to account for situations where the server should
+complete a tick reasonbly soon, i.e. 99% of cases.
+
+Should the server not enter a state where it is stopping within 10 seconds, We
+will assume that the server has in fact deadlocked and will proceed to force
+kill the server.
+
+This modification does not force restart the server should we actually enter a
+deadlocked state where the server is stopping, whereas this will in most cases
+exit within a reasonable amount of time, to put a fixed limit on a process that
+will have plugins and worlds saving to the disk has a high potential to result
+in corruption/dataloss.
+
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+     private Map<ResourceKey<Level>, ServerLevel> levels;
+     private PlayerList playerList;
+     private volatile boolean running;
++    private volatile boolean isRestarting = false; // Paper - flag to signify we're attempting to restart
+     private boolean stopped;
+     private int tickCount;
+     private int ticksUntilAutosave;
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+         if (this.playerList != null) {
+             MinecraftServer.LOGGER.info("Saving players");
+             this.playerList.saveAll();
+-            this.playerList.removeAll();
++            this.playerList.removeAll(this.isRestarting); // Paper
+             try { Thread.sleep(100); } catch (InterruptedException ex) {} // CraftBukkit - SPIGOT-625 - give server at least a chance to send packets
+         }
+ 
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+     }
+ 
+     public void halt(boolean waitForShutdown) {
++        // Paper start - allow passing of the intent to restart
++        this.safeShutdown(waitForShutdown, false);
++    }
++    public void safeShutdown(boolean waitForShutdown, boolean isRestarting) {
++        this.isRestarting = isRestarting;
++        // Paper end
+         this.running = false;
+         if (waitForShutdown) {
+             try {
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
++++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+     }
+ 
+     public void removeAll() {
++        // Paper start - Extract method to allow for restarting flag
++        this.removeAll(false);
++    }
++
++    public void removeAll(boolean isRestarting) {
++        // Paper end
+         // CraftBukkit start - disconnect safely
+         for (ServerPlayer player : this.players) {
++            if (isRestarting) player.connection.disconnect(org.spigotmc.SpigotConfig.restartMessage); else // Paper
+             player.connection.disconnect(this.server.server.shutdownMessage()); // CraftBukkit - add custom shutdown message // Paper - Adventure
+         }
+         // CraftBukkit end
+diff --git a/src/main/java/org/spigotmc/RestartCommand.java b/src/main/java/org/spigotmc/RestartCommand.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/spigotmc/RestartCommand.java
++++ b/src/main/java/org/spigotmc/RestartCommand.java
+@@ -0,0 +0,0 @@ public class RestartCommand extends Command
+         AsyncCatcher.enabled = false; // Disable async catcher incase it interferes with us
+         try
+         {
+-            String[] split = restartScript.split( " " );
+-            if ( split.length > 0 && new File( split[0] ).isFile() )
++            // Paper - extract method and cleanup
++            boolean isRestarting = addShutdownHook( restartScript );
++            if ( isRestarting )
+             {
+-                System.out.println( "Attempting to restart with " + restartScript );
++                System.out.println( "Attempting to restart with " + SpigotConfig.restartScript );
++            } else
++            {
++                System.out.println( "Startup script '" + SpigotConfig.restartScript + "' does not exist! Stopping server." );
++            }
++            // Stop the watchdog
++            WatchdogThread.doStop();
+ 
+-                // Disable Watchdog
+-                WatchdogThread.doStop();
++            shutdownServer( isRestarting );
++            // Paper end
++        } catch ( Exception ex )
++        {
++            ex.printStackTrace();
++        }
++    }
+ 
+-                // Kick all players
+-                for ( ServerPlayer p : (List<ServerPlayer>) MinecraftServer.getServer().getPlayerList().players )
+-                {
+-                    p.connection.disconnect(SpigotConfig.restartMessage);
+-                }
+-                // Give the socket a chance to send the packets
+-                try
+-                {
+-                    Thread.sleep( 100 );
+-                } catch ( InterruptedException ex )
+-                {
+-                }
+-                // Close the socket so we can rebind with the new process
+-                MinecraftServer.getServer().getConnection().stop();
++    // Paper start - sync copied from above with minor changes, async added
++    private static void shutdownServer(boolean isRestarting)
++    {
++        if ( MinecraftServer.getServer().isSameThread() )
++        {
++            // Kick all players
++            for ( ServerPlayer p : com.google.common.collect.ImmutableList.copyOf( MinecraftServer.getServer().getPlayerList().players ) )
++            {
++                p.connection.disconnect(SpigotConfig.restartMessage);
++            }
++            // Give the socket a chance to send the packets
++            try
++            {
++                Thread.sleep( 100 );
++            } catch ( InterruptedException ex )
++            {
++            }
+ 
+-                // Give time for it to kick in
+-                try
+-                {
+-                    Thread.sleep( 100 );
+-                } catch ( InterruptedException ex )
+-                {
+-                }
++            closeSocket();
+ 
+-                // Actually shutdown
+-                try
+-                {
+-                    MinecraftServer.getServer().close();
+-                } catch ( Throwable t )
+-                {
+-                }
++            // Actually shutdown
++            try
++            {
++                MinecraftServer.getServer().close(); // calls stop()
++            } catch ( Throwable t )
++            {
++            }
++
++            // Actually stop the JVM
++            System.exit( 0 );
+ 
+-                // This will be done AFTER the server has completely halted
+-                Thread shutdownHook = new Thread()
++        } else
++        {
++            // Mark the server to shutdown at the end of the tick
++            MinecraftServer.getServer().safeShutdown( false, isRestarting );
++
++            // wait 10 seconds to see if we're actually going to try shutdown
++            try
++            {
++                Thread.sleep( 10000 );
++            }
++            catch (InterruptedException ignored)
++            {
++            }
++
++            // Check if we've actually hit a state where the server is going to safely shutdown
++            // if we have, let the server stop as usual
++            if (MinecraftServer.getServer().isStopped()) return;
++
++            // If the server hasn't stopped by now, assume worse case and kill
++            closeSocket();
++            System.exit( 0 );
++        }
++    }
++    // Paper end
++
++    // Paper - Split from moved code
++    private static void closeSocket()
++    {
++        // Close the socket so we can rebind with the new process
++        MinecraftServer.getServer().getConnection().stop();
++
++        // Give time for it to kick in
++        try
++        {
++            Thread.sleep( 100 );
++        } catch ( InterruptedException ex )
++        {
++        }
++    }
++    // Paper end
++
++    // Paper start - copied from above and modified to return if the hook registered
++    private static boolean addShutdownHook(String restartScript)
++    {
++        String[] split = restartScript.split( " " );
++        if ( split.length > 0 && new File( split[0] ).isFile() )
++        {
++            Thread shutdownHook = new Thread()
++            {
++                @Override
++                public void run()
+                 {
+-                    @Override
+-                    public void run()
++                    try
+                     {
+-                        try
++                        String os = System.getProperty( "os.name" ).toLowerCase(java.util.Locale.ENGLISH);
++                        if ( os.contains( "win" ) )
+                         {
+-                            String os = System.getProperty( "os.name" ).toLowerCase(java.util.Locale.ENGLISH);
+-                            if ( os.contains( "win" ) )
+-                            {
+-                                Runtime.getRuntime().exec( "cmd /c start " + restartScript );
+-                            } else
+-                            {
+-                                Runtime.getRuntime().exec( "sh " + restartScript );
+-                            }
+-                        } catch ( Exception e )
++                            Runtime.getRuntime().exec( "cmd /c start " + restartScript );
++                        } else
+                         {
+-                            e.printStackTrace();
++                            Runtime.getRuntime().exec( "sh " + restartScript );
+                         }
++                    } catch ( Exception e )
++                    {
++                        e.printStackTrace();
+                     }
+-                };
+-
+-                shutdownHook.setDaemon( true );
+-                Runtime.getRuntime().addShutdownHook( shutdownHook );
+-            } else
+-            {
+-                System.out.println( "Startup script '" + SpigotConfig.restartScript + "' does not exist! Stopping server." );
+-
+-                // Actually shutdown
+-                try
+-                {
+-                    MinecraftServer.getServer().close();
+-                } catch ( Throwable t )
+-                {
+                 }
+-            }
+-            System.exit( 0 );
+-        } catch ( Exception ex )
++            };
++
++            shutdownHook.setDaemon( true );
++            Runtime.getRuntime().addShutdownHook( shutdownHook );
++            return true;
++        } else
+         {
+-            ex.printStackTrace();
++            return false;
+         }
+     }
++    // Paper end
++
+ }

patches/server/Provide-E-TE-Chunk-count-stat-methods.patch

@@ -0,0 +1,82 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sat, 7 Jan 2017 15:24:46 -0500
+Subject: [PATCH] Provide E/TE/Chunk count stat methods
+
+Provides counts without the ineffeciency of using .getEntities().size()
+which creates copy of the collections.
+
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
++++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+     public static final int TICKS_PER_DAY = 24000;
+     public static final int MAX_ENTITY_SPAWN_Y = 20000000;
+     public static final int MIN_ENTITY_SPAWN_Y = -20000000;
+-    protected final List<TickingBlockEntity> blockEntityTickers = Lists.newArrayList();
++    public final List<TickingBlockEntity> blockEntityTickers = Lists.newArrayList(); // Paper - public
+     protected final NeighborUpdater neighborUpdater;
+     private final List<TickingBlockEntity> pendingBlockEntityTickers = Lists.newArrayList();
+     private boolean tickingBlockEntities;
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+@@ -0,0 +0,0 @@ public class CraftWorld extends CraftRegionAccessor implements World {
+     private final CraftPersistentDataContainer persistentDataContainer = new CraftPersistentDataContainer(CraftWorld.DATA_TYPE_REGISTRY);
+     private net.kyori.adventure.pointer.Pointers adventure$pointers; // Paper - implement pointers
+ 
++    // Paper start - Provide fast information methods
++    @Override
++    public int getEntityCount() {
++        int ret = 0;
++        for (net.minecraft.world.entity.Entity entity : world.getEntities().getAll()) {
++            if (entity.isChunkLoaded()) {
++                ++ret;
++            }
++        }
++        return ret;
++    }
++
++    @Override
++    public int getTileEntityCount() {
++        // We don't use the full world tile entity list, so we must iterate chunks
++        int size = 0;
++        for (ChunkHolder playerchunk : io.papermc.paper.chunk.system.ChunkSystem.getVisibleChunkHolders(this.world)) {
++            net.minecraft.world.level.chunk.LevelChunk chunk = playerchunk.getTickingChunk();
++            if (chunk == null) {
++                continue;
++            }
++            size += chunk.blockEntities.size();
++        }
++        return size;
++    }
++
++    @Override
++    public int getTickableTileEntityCount() {
++        return world.blockEntityTickers.size();
++    }
++
++    @Override
++    public int getChunkCount() {
++        int ret = 0;
++
++        for (ChunkHolder chunkHolder : io.papermc.paper.chunk.system.ChunkSystem.getVisibleChunkHolders(this.world)) {
++            if (chunkHolder.getTickingChunk() != null) {
++                ++ret;
++            }
++        }
++
++        return ret;
++    }
++
++    @Override
++    public int getPlayerCount() {
++        return world.players().size();
++    }
++    // Paper end
++
+     private static final Random rand = new Random();
+ 
+     public CraftWorld(ServerLevel world, ChunkGenerator gen, BiomeProvider biomeProvider, Environment env) {