Finish converting most of the undeprecated api to jspecify

patches/api/Add-basic-Datapack-API.patch

@@ -16,14 +16,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +import java.util.Set;
 +import net.kyori.adventure.text.Component;
 +import org.bukkit.FeatureFlag;
-+import org.checkerframework.checker.nullness.qual.NonNull;
 +import org.jetbrains.annotations.Contract;
 +import org.jetbrains.annotations.Unmodifiable;
++import org.jspecify.annotations.NullMarked;
 +
 +/**
 + * This is a snapshot of a datapack on the server. It
 + * won't be updated as datapacks are updated.
 + */
++@NullMarked
 +public interface Datapack {
 +
 +    /**
@@ -32,21 +33,21 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * @return the name of the pack
 +     */
 +    @Contract(pure = true)
-+    @NonNull String getName();
++    String getName();
 +
 +    /**
 +     * Gets the title component of this datapack.
 +     *
 +     * @return the title
 +     */
-+    @NonNull Component getTitle();
++    Component getTitle();
 +
 +    /**
 +     * Gets the description component of this datapack.
 +     *
 +     * @return the description
 +     */
-+    @NonNull Component getDescription();
++    Component getDescription();
 +
 +    /**
 +     * Gets if this datapack is required to be enabled.
@@ -60,14 +61,14 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return the compatibility of the pack
 +     */
-+    @NonNull Compatibility getCompatibility();
++    Compatibility getCompatibility();
 +
 +    /**
 +     * Gets the set of required features for this datapack.
 +     *
 +     * @return the set of required features
 +     */
-+    @NonNull @Unmodifiable Set<FeatureFlag> getRequiredFeatures();
++    @Unmodifiable Set<FeatureFlag> getRequiredFeatures();
 +
 +    /**
 +     * Gets the enabled state of this pack.
@@ -91,7 +92,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return the pack source
 +     */
-+    @NonNull DatapackSource getSource();
++    DatapackSource getSource();
 +
 +    /**
 +     * Computes the component vanilla Minecraft uses
@@ -101,7 +102,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * @return a new component
 +     */
 +    @Contract(pure = true, value = "-> new")
-+    @NonNull Component computeDisplayName();
++    Component computeDisplayName();
 +
 +    enum Compatibility {
 +        TOO_OLD,
@@ -117,12 +118,12 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 @@ -0,0 +0,0 @@
 +package io.papermc.paper.datapack;
 +
-+import org.checkerframework.checker.nullness.qual.NonNull;
-+
 +import java.util.Collection;
-+import org.checkerframework.checker.nullness.qual.Nullable;
 +import org.jetbrains.annotations.Unmodifiable;
++import org.jspecify.annotations.NullMarked;
++import org.jspecify.annotations.Nullable;
 +
++@NullMarked
 +public interface DatapackManager {
 +
 +    /**
@@ -140,7 +141,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * @param name the name/id of the datapack
 +     * @return the datapack, or null if not found
 +     */
-+    @Nullable Datapack getPack(@NonNull String name);
++    @Nullable Datapack getPack(String name);
 +
 +    /**
 +     * Gets the available datapacks. May require calling {@link #refreshPacks()} before
@@ -148,7 +149,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return all the packs known to the server
 +     */
-+    @NonNull @Unmodifiable Collection<Datapack> getPacks();
++    @Unmodifiable Collection<Datapack> getPacks();
 +
 +    /**
 +     * Gets the enabled datapacks. May require calling {@link #refreshPacks()} before
@@ -156,7 +157,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return all the packs which are currently enabled
 +     */
-+    @NonNull @Unmodifiable Collection<Datapack> getEnabledPacks();
++    @Unmodifiable Collection<Datapack> getEnabledPacks();
 +}
 diff --git a/src/main/java/io/papermc/paper/datapack/DatapackSource.java b/src/main/java/io/papermc/paper/datapack/DatapackSource.java
 new file mode 100644
@@ -166,9 +167,12 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 @@ -0,0 +0,0 @@
 +package io.papermc.paper.datapack;
 +
++import org.jspecify.annotations.NullMarked;
++
 +/**
 + * Source of a datapack.
 + */
++@NullMarked
 +public sealed interface DatapackSource permits DatapackSourceImpl {
 +
 +    DatapackSource DEFAULT = create("default");
@@ -190,8 +194,10 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +package io.papermc.paper.datapack;
 +
 +import org.jetbrains.annotations.ApiStatus;
++import org.jspecify.annotations.NullMarked;
 +
 +@ApiStatus.Internal
++@NullMarked
 +record DatapackSourceImpl(String name) implements DatapackSource {
 +
 +    @Override