Begin switching to JSpecify annotations (#11448)

* Begin switching to JSpecify annotations

* more

* fixes

patches/api/WitchThrowPotionEvent.patch

@@ -20,28 +20,28 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +import org.bukkit.event.entity.EntityEvent;
 +import org.bukkit.inventory.ItemStack;
 +import org.jetbrains.annotations.ApiStatus;
-+import org.jetbrains.annotations.NotNull;
-+import org.jetbrains.annotations.Nullable;
++import org.jspecify.annotations.NullMarked;
++import org.jspecify.annotations.Nullable;
 +
 +/**
 + * Fired when a witch throws a potion at a player
 + */
++@NullMarked
 +public class WitchThrowPotionEvent extends EntityEvent implements Cancellable {
 +
 +    private static final HandlerList HANDLER_LIST = new HandlerList();
 +
-+    @NotNull private final LivingEntity target;
-+    @Nullable private ItemStack potion;
++    private final LivingEntity target;
++    private @Nullable ItemStack potion;
 +    private boolean cancelled;
 +
 +    @ApiStatus.Internal
-+    public WitchThrowPotionEvent(@NotNull Witch witch, @NotNull LivingEntity target, @Nullable ItemStack potion) {
++    public WitchThrowPotionEvent(final Witch witch, final LivingEntity target, final @Nullable ItemStack potion) {
 +        super(witch);
 +        this.target = target;
 +        this.potion = potion;
 +    }
 +
-+    @NotNull
 +    @Override
 +    public Witch getEntity() {
 +        return (Witch) super.getEntity();
@@ -50,7 +50,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    /**
 +     * @return The target of the potion
 +     */
-+    @NotNull
 +    public LivingEntity getTarget() {
 +        return this.target;
 +    }
@@ -58,8 +57,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    /**
 +     * @return The potion the witch will throw at a player
 +     */
-+    @Nullable
-+    public ItemStack getPotion() {
++    public @Nullable ItemStack getPotion() {
 +        return this.potion;
 +    }
 +
@@ -68,7 +66,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @param potion The potion
 +     */
-+    public void setPotion(@Nullable ItemStack potion) {
++    public void setPotion(final @Nullable ItemStack potion) {
 +        this.potion = potion != null ? potion.clone() : null;
 +    }
 +
@@ -81,17 +79,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    }
 +
 +    @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;
 +    }