Bukkit

@EventHandler
	public void onGenerate(ChestRegenEvent event){
		//This will get the chest from the event
		Chest chest = event.getChest();
		//Making a new ItemStack array
		ItemStack[] items = {new ItemStack(Material.BEDROCK), new ItemStack(Material.ANVIL)};
		//You can set the regenerated items
		event.setRegeneratedItems(items);
		//You can get the Regenerated items
		event.getRegeneratedItems();
		//You can get the regenReason
		if(event.getRegenCause().equals(RegenCause.CUSTOM)){
			//You can cancel the event
			event.setCancelled(true);
		}
		//You can get the stored items for the specific chest
		ItemStack[] defaultItems = event.getDefaultItems();
	}

@EventHandler
	public void onOpen(RegenChestOpenEvent event){
		//This event is called when you Right Click a regenchest
		//If it is a perplayerchest, it will be called regardless if it has regenerated
		Player player = event.getPlayer();
		if(!player.hasPermission("TestPermission.Test")){
			event.setCancelled(true);
		}else{
			player.sendMessage("Test :D ");
			ItemStack[] items = {new ItemStack(Material.BEDROCK), new ItemStack(Material.ANVIL)};
			//Set the items in the chest
			event.getChest().setTempInv(items);
		}
	}