ClickInventoryEvent Issues

@Listener
    private void onGetItemEvent (ClickInventoryEvent.Creative event, @First Player p) {

        World world = p.getWorld();

        getLogger().info("Some Inventory called for a check because of the item: " + event.getCursorTransaction().getFinal().getType().getName());
        getLogger().info("checking in world: " + world.toString());


        final Set<String> items = new HashSet<String>(Arrays.asList(
                new String[] {"pixelmon:item.Rare_Candy", "pixelmon:tile.fossilmachine", "pixelmon.tile.cloningMachine", "pixelmon:Pixelmon_Spawner" ,"pixelmon:item.spawnGrotto"}
                ));

        if(items.contains(event.getCursorTransaction().getFinal().getType().getName()) &! world.equals(Sponge.getGame().getServer().getWorld("world").get())) {
            getLogger().info("Supposed to be canceling the event.");
            event.setCancelled(true);
        }
    }