switch to JSpecify annotations

patches/api/0022-PlayerBookTooLargeEvent.patch

@@ -6,7 +6,7 @@ Subject: [PATCH] PlayerBookTooLargeEvent
 
 diff --git a/src/main/java/org/purpurmc/purpur/event/player/PlayerBookTooLargeEvent.java b/src/main/java/org/purpurmc/purpur/event/player/PlayerBookTooLargeEvent.java
 new file mode 100644
-index 0000000000000000000000000000000000000000..c88394336bc9ab0f66a2af24d393f4a176a234d5
+index 0000000000000000000000000000000000000000..31cce9f4e398135016114b96254376325a22ba7c
 --- /dev/null
 +++ b/src/main/java/org/purpurmc/purpur/event/player/PlayerBookTooLargeEvent.java
 @@ -0,0 +1,65 @@
@@ -17,11 +17,13 @@ index 0000000000000000000000000000000000000000..c88394336bc9ab0f66a2af24d393f4a1
 +import org.bukkit.event.HandlerList;
 +import org.bukkit.event.player.PlayerEvent;
 +import org.bukkit.inventory.ItemStack;
-+import org.jetbrains.annotations.NotNull;
++import org.jetbrains.annotations.ApiStatus;
++import org.jspecify.annotations.NullMarked;
 +
 +/**
 + * Called when a player tries to bypass book limitations
 + */
++@NullMarked
 +public class PlayerBookTooLargeEvent extends PlayerEvent {
 +    private static final HandlerList handlers = new HandlerList();
 +    private final ItemStack book;
@@ -31,7 +33,8 @@ index 0000000000000000000000000000000000000000..c88394336bc9ab0f66a2af24d393f4a1
 +     * @param player The player
 +     * @param book The book
 +     */
-+    public PlayerBookTooLargeEvent(@NotNull Player player, @NotNull ItemStack book) {
++    @ApiStatus.Internal
++    public PlayerBookTooLargeEvent(Player player, ItemStack book) {
 +        super(player, !Bukkit.isPrimaryThread());
 +        this.book = book;
 +    }
@@ -41,7 +44,6 @@ index 0000000000000000000000000000000000000000..c88394336bc9ab0f66a2af24d393f4a1
 +     *
 +     * @return The book
 +     */
-+    @NotNull
 +    public ItemStack getBook() {
 +        return book;
 +    }
@@ -65,12 +67,10 @@ index 0000000000000000000000000000000000000000..c88394336bc9ab0f66a2af24d393f4a1
 +    }
 +
 +    @Override
-+    @NotNull
 +    public HandlerList getHandlers() {
 +        return handlers;
 +    }
 +
-+    @NotNull
 +    public static HandlerList getHandlerList() {
 +        return handlers;
 +    }