=================== NORMAL ========================

    @EventHandler
    public void onMenuClick(InventoryClickEvent event) {
        Player player = (Player) event.getWhoClicked();
        if (event.getView().getTitle().equalsIgnoreCase(Utils.chat("&4&lBOSS"))) {
            event.setCancelled(true);
            if (event.getCurrentItem().getType().equals(Material.GHAST_TEAR)){
                player.closeInventory();
                player.chat("/normalboss1");

=================== HARDCORE ==========================

    @EventHandler
    public void onMenuClick(InventoryClickEvent event){
        Player player = (Player) event.getWhoClicked();
        if (event.getView().getTitle().equalsIgnoreCase(Utils.chat("&4&lHARDCORE BOSS"))) {
            event.setCancelled(true);
            if (event.getCurrentItem().getType().equals(Material.GHAST_TEAR)){
                player.closeInventory();
                player.chat("/hardcoreboss1");

==================================================================================