Begin switching to JSpecify annotations (#11448)

* Begin switching to JSpecify annotations

* more

* fixes

patches/api/Entity-Jump-API.patch

@@ -17,13 +17,14 @@ 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 jumps
 + * <p>
 + * Cancelling the event will stop the entity from jumping
 + */
++@NullMarked
 +public class EntityJumpEvent extends EntityEvent implements Cancellable {
 +
 +    private static final HandlerList HANDLER_LIST = new HandlerList();
@@ -31,11 +32,10 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    private boolean cancelled;
 +
 +    @ApiStatus.Internal
-+    public EntityJumpEvent(@NotNull LivingEntity entity) {
++    public EntityJumpEvent(final LivingEntity entity) {
 +        super(entity);
 +    }
 +
-+    @NotNull
 +    @Override
 +    public LivingEntity getEntity() {
 +        return (LivingEntity) super.getEntity();
@@ -45,17 +45,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        return this.cancelled;
 +    }
 +
-+    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;
 +    }