Begin switching to JSpecify annotations (#11448)

* Begin switching to JSpecify annotations

* more

* fixes

patches/api/0079-PreCreatureSpawnEvent.patch

@@ -16,10 +16,10 @@ See: https://github.com/PaperMC/Paper/issues/917
 
 diff --git a/src/main/java/com/destroystokyo/paper/event/entity/PreCreatureSpawnEvent.java b/src/main/java/com/destroystokyo/paper/event/entity/PreCreatureSpawnEvent.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..633ef4dcc701916f2dbfefbbebd5994f93ffc2a4
+index 0000000000000000000000000000000000000000..c1c96f93a4a5450381cb5bdb198b056a37ba0fbe
 --- /dev/null
 +++ b/src/main/java/com/destroystokyo/paper/event/entity/PreCreatureSpawnEvent.java
-@@ -0,0 +1,109 @@
+@@ -0,0 +1,105 @@
 +package com.destroystokyo.paper.event.entity;
 +
 +import org.bukkit.Location;
@@ -29,7 +29,7 @@ index 0000000000000000000000000000000000000000..633ef4dcc701916f2dbfefbbebd5994f
 +import org.bukkit.event.HandlerList;
 +import org.bukkit.event.entity.CreatureSpawnEvent;
 +import org.jetbrains.annotations.ApiStatus;
-+import org.jetbrains.annotations.NotNull;
++import org.jspecify.annotations.NullMarked;
 +
 +/**
 + * WARNING: This event only fires for a limited number of cases, and not for every case that {@link CreatureSpawnEvent} does.
@@ -41,19 +41,20 @@ index 0000000000000000000000000000000000000000..633ef4dcc701916f2dbfefbbebd5994f
 + * Currently: NATURAL and SPAWNER based reasons. <!-- Please submit a Pull Request for future additions. -->
 + * Also, Plugins that replace Entity Registrations with their own custom entities might not fire this event.
 + */
++@NullMarked
 +public class PreCreatureSpawnEvent extends Event implements Cancellable {
 +
 +    private static final HandlerList HANDLER_LIST = new HandlerList();
 +
-+    @NotNull private final Location location;
-+    @NotNull private final EntityType type;
-+    @NotNull private final CreatureSpawnEvent.SpawnReason reason;
++    private final Location location;
++    private final EntityType type;
++    private final CreatureSpawnEvent.SpawnReason reason;
 +    private boolean shouldAbortSpawn;
 +
 +    private boolean cancelled;
 +
 +    @ApiStatus.Internal
-+    public PreCreatureSpawnEvent(@NotNull Location location, @NotNull EntityType type, @NotNull CreatureSpawnEvent.SpawnReason reason) {
++    public PreCreatureSpawnEvent(final Location location, final EntityType type, final CreatureSpawnEvent.SpawnReason reason) {
 +        this.location = location;
 +        this.type = type;
 +        this.reason = reason;
@@ -62,7 +63,6 @@ index 0000000000000000000000000000000000000000..633ef4dcc701916f2dbfefbbebd5994f
 +    /**
 +     * @return The location this creature is being spawned at
 +     */
-+    @NotNull
 +    public Location getSpawnLocation() {
 +        return this.location.clone();
 +    }
@@ -70,7 +70,6 @@ index 0000000000000000000000000000000000000000..633ef4dcc701916f2dbfefbbebd5994f
 +    /**
 +     * @return The type of creature being spawned
 +     */
-+    @NotNull
 +    public EntityType getType() {
 +        return this.type;
 +    }
@@ -78,7 +77,6 @@ index 0000000000000000000000000000000000000000..633ef4dcc701916f2dbfefbbebd5994f
 +    /**
 +     * @return Reason this creature is spawning (ie, NATURAL vs SPAWNER)
 +     */
-+    @NotNull
 +    public CreatureSpawnEvent.SpawnReason getReason() {
 +        return this.reason;
 +    }
@@ -96,7 +94,7 @@ index 0000000000000000000000000000000000000000..633ef4dcc701916f2dbfefbbebd5994f
 +     *
 +     * @param shouldAbortSpawn Set if the spawn process should be aborted vs trying more attempts
 +     */
-+    public void setShouldAbortSpawn(boolean shouldAbortSpawn) {
++    public void setShouldAbortSpawn(final boolean shouldAbortSpawn) {
 +        this.shouldAbortSpawn = shouldAbortSpawn;
 +    }
 +
@@ -114,17 +112,15 @@ index 0000000000000000000000000000000000000000..633ef4dcc701916f2dbfefbbebd5994f
 +     * @param cancel {@code true} if you wish to cancel this event, and abort the spawn of this creature
 +     */
 +    @Override
-+    public void setCancelled(boolean cancel) {
++    public void setCancelled(final boolean cancel) {
 +        this.cancelled = cancel;
 +    }
 +
-+    @NotNull
 +    @Override
 +    public HandlerList getHandlers() {
 +        return HANDLER_LIST;
 +    }
 +
-+    @NotNull
 +    public static HandlerList getHandlerList() {
 +        return HANDLER_LIST;
 +    }