Swap some nullable annotations (#9696)

patches/api/0237-Add-EntityLoadCrossbowEvent.patch

@@ -6,33 +6,34 @@ Subject: [PATCH] Add EntityLoadCrossbowEvent
 
 diff --git a/src/main/java/io/papermc/paper/event/entity/EntityLoadCrossbowEvent.java b/src/main/java/io/papermc/paper/event/entity/EntityLoadCrossbowEvent.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..aa9ccd7c806e864455ecd5f15ddb17c0fa8728c4
+index 0000000000000000000000000000000000000000..66e41bfe89f35d3947ea47aedcd36ac8f01ac5b6
 --- /dev/null
 +++ b/src/main/java/io/papermc/paper/event/entity/EntityLoadCrossbowEvent.java
-@@ -0,0 +1,97 @@
+@@ -0,0 +1,98 @@
 +package io.papermc.paper.event.entity;
 +
 +import org.bukkit.entity.LivingEntity;
-+import org.bukkit.entity.Player;
 +import org.bukkit.event.Cancellable;
 +import org.bukkit.event.HandlerList;
 +import org.bukkit.event.entity.EntityEvent;
 +import org.bukkit.inventory.EquipmentSlot;
 +import org.bukkit.inventory.ItemStack;
++import org.jetbrains.annotations.ApiStatus;
 +import org.jetbrains.annotations.NotNull;
-+import org.jetbrains.annotations.Nullable;
 +
 +/**
 + * Called when a LivingEntity loads a crossbow with a projectile.
 + */
 +public class EntityLoadCrossbowEvent extends EntityEvent implements Cancellable {
-+    private static final HandlerList handlers = new HandlerList();
++    private static final HandlerList HANDLER_LIST = new HandlerList();
++
 +    private final ItemStack crossbow;
 +    private final EquipmentSlot hand;
 +    private boolean cancelled;
 +    private boolean consumeItem = true;
 +
-+    public EntityLoadCrossbowEvent(@NotNull LivingEntity entity, @Nullable ItemStack crossbow, @NotNull EquipmentSlot hand) {
++    @ApiStatus.Internal
++    public EntityLoadCrossbowEvent(@NotNull LivingEntity entity, @NotNull ItemStack crossbow, @NotNull EquipmentSlot hand) {
 +        super(entity);
 +        this.crossbow = crossbow;
 +        this.hand = hand;
@@ -49,7 +50,7 @@ index 0000000000000000000000000000000000000000..aa9ccd7c806e864455ecd5f15ddb17c0
 +     *
 +     * @return the crossbow involved in this event
 +     */
-+    @Nullable
++    @NotNull
 +    public ItemStack getCrossbow() {
 +        return crossbow;
 +    }
@@ -99,11 +100,11 @@ index 0000000000000000000000000000000000000000..aa9ccd7c806e864455ecd5f15ddb17c0
 +    @NotNull
 +    @Override
 +    public HandlerList getHandlers() {
-+        return handlers;
++        return HANDLER_LIST;
 +    }
 +
 +    @NotNull
 +    public static HandlerList getHandlerList() {
-+        return handlers;
++        return HANDLER_LIST;
 +    }
 +}