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Finish API patches
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@@ -0,0 +1,156 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Nassim Jahnke <nassim@njahnke.dev>
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Date: Thu, 4 Jan 2024 13:49:14 +0100
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Subject: [PATCH] Validate ResourceLocation in NBT reading
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diff --git a/src/main/java/net/minecraft/nbt/NbtUtils.java b/src/main/java/net/minecraft/nbt/NbtUtils.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/nbt/NbtUtils.java
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+++ b/src/main/java/net/minecraft/nbt/NbtUtils.java
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@@ -0,0 +0,0 @@ public final class NbtUtils {
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if (!nbt.contains("Name", 8)) {
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return Blocks.AIR.defaultBlockState();
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} else {
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- ResourceLocation resourceLocation = new ResourceLocation(nbt.getString("Name"));
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- Optional<? extends Holder<Block>> optional = blockLookup.get(ResourceKey.create(Registries.BLOCK, resourceLocation));
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+ // Paper start - Validate resource location
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+ ResourceLocation resourceLocation = ResourceLocation.tryParse(nbt.getString("Name"));
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+ Optional<? extends Holder<Block>> optional = resourceLocation != null ? blockLookup.get(ResourceKey.create(Registries.BLOCK, resourceLocation)) : Optional.empty();
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+ // Paper end - Validate resource location
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if (optional.isEmpty()) {
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return Blocks.AIR.defaultBlockState();
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} else {
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diff --git a/src/main/java/net/minecraft/resources/ResourceLocation.java b/src/main/java/net/minecraft/resources/ResourceLocation.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/resources/ResourceLocation.java
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+++ b/src/main/java/net/minecraft/resources/ResourceLocation.java
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@@ -0,0 +0,0 @@ public class ResourceLocation implements Comparable<ResourceLocation> {
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private final String path;
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protected ResourceLocation(String namespace, String path, @Nullable ResourceLocation.Dummy extraData) {
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+ // Paper start - Validate ResourceLocation
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+ // Check for the max network string length (capped at Short.MAX_VALUE) as well as the max bytes of a StringTag (length written as an unsigned short)
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+ final String resourceLocation = namespace + ":" + path;
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+ if (resourceLocation.length() > Short.MAX_VALUE || io.netty.buffer.ByteBufUtil.utf8MaxBytes(resourceLocation) > 2 * Short.MAX_VALUE + 1) {
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+ throw new ResourceLocationException("Resource location too long: " + resourceLocation);
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+ }
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+ // Paper end - Validate ResourceLocation
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this.namespace = namespace;
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this.path = path;
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}
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diff --git a/src/main/java/net/minecraft/world/RandomizableContainer.java b/src/main/java/net/minecraft/world/RandomizableContainer.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/RandomizableContainer.java
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+++ b/src/main/java/net/minecraft/world/RandomizableContainer.java
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@@ -0,0 +0,0 @@ public interface RandomizableContainer extends Container {
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default boolean tryLoadLootTable(CompoundTag nbt) {
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if (nbt.contains("LootTable", 8)) {
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- this.setLootTable(ResourceKey.create(Registries.LOOT_TABLE, new ResourceLocation(nbt.getString("LootTable"))));
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+ this.setLootTable(net.minecraft.Optionull.map(ResourceLocation.tryParse(nbt.getString("LootTable")), rl -> ResourceKey.create(Registries.LOOT_TABLE, rl))); // Paper - Validate ResourceLocation
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if (this.lootableData() != null && this.getLootTable() != null) this.lootableData().loadNbt(nbt); // Paper - LootTable API
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if (nbt.contains("LootTableSeed", 4)) {
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this.setLootTableSeed(nbt.getLong("LootTableSeed"));
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diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/entity/EntityType.java
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+++ b/src/main/java/net/minecraft/world/entity/EntityType.java
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@@ -0,0 +0,0 @@ public class EntityType<T extends Entity> implements FeatureElement, EntityTypeT
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}
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public static Optional<EntityType<?>> by(CompoundTag nbt) {
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- return BuiltInRegistries.ENTITY_TYPE.getOptional(new ResourceLocation(nbt.getString("id")));
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+ return BuiltInRegistries.ENTITY_TYPE.getOptional(ResourceLocation.tryParse(nbt.getString("id"))); // Paper - Validate ResourceLocation
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}
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@Nullable
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
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if (nbt.contains("SleepingX", 99) && nbt.contains("SleepingY", 99) && nbt.contains("SleepingZ", 99)) {
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BlockPos blockposition = new BlockPos(nbt.getInt("SleepingX"), nbt.getInt("SleepingY"), nbt.getInt("SleepingZ"));
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-
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+ if (this.position().distanceToSqr(blockposition.getX(), blockposition.getY(), blockposition.getZ()) < 16 * 16) { // Paper - The sleeping pos will always also set the actual pos, so a desync suggests something is wrong
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this.setSleepingPos(blockposition);
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this.entityData.set(LivingEntity.DATA_POSE, Pose.SLEEPING);
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if (!this.firstTick) {
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this.setPosToBed(blockposition);
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}
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+ } // Paper - The sleeping pos will always also set the actual pos, so a desync suggests something is wrong
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}
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if (nbt.contains("Brain", 10)) {
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diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/entity/Mob.java
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+++ b/src/main/java/net/minecraft/world/entity/Mob.java
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@@ -0,0 +0,0 @@ public abstract class Mob extends LivingEntity implements EquipmentUser, Targeti
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this.setLeftHanded(nbt.getBoolean("LeftHanded"));
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if (nbt.contains("DeathLootTable", 8)) {
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- this.lootTable = ResourceKey.create(Registries.LOOT_TABLE, new ResourceLocation(nbt.getString("DeathLootTable")));
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+ this.lootTable = net.minecraft.Optionull.map(ResourceLocation.tryParse(nbt.getString("DeathLootTable")), rl -> ResourceKey.create(Registries.LOOT_TABLE, rl)); // Paper - Validate ResourceLocation
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this.lootTableSeed = nbt.getLong("DeathLootTableSeed");
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}
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diff --git a/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java b/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
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+++ b/src/main/java/net/minecraft/world/entity/projectile/AbstractArrow.java
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@@ -0,0 +0,0 @@ public abstract class AbstractArrow extends Projectile {
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this.setCritArrow(nbt.getBoolean("crit"));
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this.setPierceLevel(nbt.getByte("PierceLevel"));
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if (nbt.contains("SoundEvent", 8)) {
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- this.soundEvent = (SoundEvent) BuiltInRegistries.SOUND_EVENT.getOptional(new ResourceLocation(nbt.getString("SoundEvent"))).orElse(this.getDefaultHitGroundSoundEvent());
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+ this.soundEvent = (SoundEvent) BuiltInRegistries.SOUND_EVENT.getOptional(ResourceLocation.tryParse(nbt.getString("SoundEvent"))).orElse(this.getDefaultHitGroundSoundEvent()); // Paper - Validate resource location
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}
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this.setShotFromCrossbow(nbt.getBoolean("ShotFromCrossbow"));
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diff --git a/src/main/java/net/minecraft/world/entity/vehicle/ContainerEntity.java b/src/main/java/net/minecraft/world/entity/vehicle/ContainerEntity.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/entity/vehicle/ContainerEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/vehicle/ContainerEntity.java
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@@ -0,0 +0,0 @@ public interface ContainerEntity extends Container, MenuProvider {
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default void readChestVehicleSaveData(CompoundTag nbt, HolderLookup.Provider registriesLookup) {
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this.clearItemStacks();
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if (nbt.contains("LootTable", 8)) {
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- this.setLootTable(ResourceKey.create(Registries.LOOT_TABLE, new ResourceLocation(nbt.getString("LootTable"))));
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+ this.setLootTable(net.minecraft.Optionull.map(ResourceLocation.tryParse(nbt.getString("LootTable")), rl -> ResourceKey.create(Registries.LOOT_TABLE, rl))); // Paper - Validate ResourceLocation
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// Paper start - LootTable API
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if (this.getLootTable() != null) {
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this.lootableData().loadNbt(nbt);
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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
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
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+++ b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
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@@ -0,0 +0,0 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
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while (iterator.hasNext()) {
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String s = (String) iterator.next();
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- this.recipesUsed.put(new ResourceLocation(s), nbttagcompound1.getInt(s));
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+ // Paper start - Validate ResourceLocation
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+ final ResourceLocation resourceLocation = ResourceLocation.tryParse(s);
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+ if (resourceLocation != null) {
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+ this.recipesUsed.put(resourceLocation, nbttagcompound1.getInt(s));
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+ }
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+ // Paper end - Validate ResourceLocation
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}
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// Paper start - cook speed multiplier API
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diff --git a/src/main/java/net/minecraft/world/level/block/entity/BrushableBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/BrushableBlockEntity.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/world/level/block/entity/BrushableBlockEntity.java
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+++ b/src/main/java/net/minecraft/world/level/block/entity/BrushableBlockEntity.java
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@@ -0,0 +0,0 @@ public class BrushableBlockEntity extends BlockEntity {
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private boolean tryLoadLootTable(CompoundTag nbt) {
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if (nbt.contains("LootTable", 8)) {
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- this.lootTable = ResourceKey.create(Registries.LOOT_TABLE, new ResourceLocation(nbt.getString("LootTable")));
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+ this.lootTable = net.minecraft.Optionull.map(ResourceLocation.tryParse(nbt.getString("LootTable")), rl -> ResourceKey.create(Registries.LOOT_TABLE, rl)); // Paper - Validate ResourceLocation
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this.lootTableSeed = nbt.getLong("LootTableSeed");
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return true;
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} else {
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