Begin switching to JSpecify annotations (#11448)

* Begin switching to JSpecify annotations

* more

* fixes

patches/api/Add-EntityInsideBlockEvent.patch

@@ -18,7 +18,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +import org.bukkit.event.HandlerList;
 +import org.bukkit.event.entity.EntityEvent;
 +import org.jetbrains.annotations.ApiStatus;
-+import org.jetbrains.annotations.NotNull;
++import org.jspecify.annotations.NullMarked;
 +
 +/**
 + * Called when an entity enters the hitbox of a block.
@@ -53,6 +53,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 + *     <li>Wither rose</li>
 + * </ul>
 + */
++@NullMarked
 +public class EntityInsideBlockEvent extends EntityEvent implements Cancellable {
 +
 +    private static final HandlerList HANDLER_LIST = new HandlerList();
@@ -61,7 +62,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    private boolean cancelled;
 +
 +    @ApiStatus.Internal
-+    public EntityInsideBlockEvent(@NotNull Entity entity, @NotNull Block block) {
++    public EntityInsideBlockEvent(final Entity entity, final Block block) {
 +        super(entity);
 +        this.block = block;
 +    }
@@ -71,7 +72,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return the block
 +     */
-+    @NotNull
 +    public Block getBlock() {
 +        return this.block;
 +    }
@@ -82,17 +82,15 @@ 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;
 +    }