Skip Poisonous_Potato

@EventHandler
public void onPlayerItemConsume(PlayerItemConsumeEvent event) {
    if(event.getItem().getType().equals(Material.POISONOUS_POTATO)) {
        event.setCancelled(true);
        ItemStack item = event.getPlayer().getInventory().getItemInHand();

        if(item.getAmount() <= 1) {
            event.getPlayer().getInventory().setItemInHand(new ItemStack(Material.AIR));
        } else {
            item.setAmount(item.getAmount() - 1);
            event.getPlayer().getInventory().setItemInHand(item);
        }
        @SuppressWarnings("deprecation")
        event.getPlayer().updateInventory();

        //Dein restlicher Code\\

    }
}