[ci skip] Cleanup events (#10202)

patches/api/Added-EntityDamageItemEvent.patch

@@ -17,6 +17,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +import org.bukkit.event.HandlerList;
 +import org.bukkit.event.entity.EntityEvent;
 +import org.bukkit.inventory.ItemStack;
++import org.jetbrains.annotations.ApiStatus;
 +import org.jetbrains.annotations.NotNull;
 +
 +/**
@@ -28,10 +29,13 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +public class EntityDamageItemEvent extends EntityEvent implements Cancellable {
 +
 +    private static final HandlerList HANDLER_LIST = new HandlerList();
++
 +    private final ItemStack item;
 +    private int damage;
++
 +    private boolean cancelled;
 +
++    @ApiStatus.Internal
 +    public EntityDamageItemEvent(@NotNull Entity entity, @NotNull ItemStack item, int damage) {
 +        super(entity);
 +        this.item = item;
@@ -45,7 +49,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     */
 +    @NotNull
 +    public ItemStack getItem() {
-+        return item;
++        return this.item;
 +    }
 +
 +    /**
@@ -54,7 +58,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * @return durability change
 +     */
 +    public int getDamage() {
-+        return damage;
++        return this.damage;
 +    }
 +
 +    /**
@@ -68,12 +72,12 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +
 +    @Override
 +    public boolean isCancelled() {
-+        return cancelled;
++        return this.cancelled;
 +    }
 +
 +    @Override
 +    public void setCancelled(boolean cancel) {
-+        cancelled = cancel;
++        this.cancelled = cancel;
 +    }
 +
 +    @NotNull