@EventHandler(priority = EventPriority.HIGHEST)
    public void sword(PlayerInteractEvent e) {
        if(e.getAction() == Action.LEFT_CLICK_AIR || e.getAction() == Action.LEFT_CLICK_BLOCK) {
            if(e.getPlayer().getItemInHand().getType() == Material.DIAMOND_SWORD ||
                    e.getPlayer().getItemInHand().getType() == Material.IRON_SWORD ||
                    e.getPlayer().getItemInHand().getType() == Material.STONE_SWORD) {
                ItemStack is = e.getPlayer().getItemInHand();
                e.getPlayer().setItemInHand(null);
                e.getPlayer().setItemInHand(is);
            }
        }
    }