GUI Inventory help

Hey, I have this GUI-Kit plugin that i am creating, and when i type /kit it opens the menu, but when i get out of the menu and try and shift click into my inventory it puts the item back where it was. And i can't grab items out of my inventory either. Thanks for any help.

Code:

    private void openGUI ( Player player) {
        Inventory i = Bukkit.createInventory(null, 9, ChatColor.AQUA + "Kits");
      
        ItemStack Heavy = new ItemStack(Material.DIAMOND_CHESTPLATE);
        ItemMeta Heavymeta = Heavy.getItemMeta();
      
        Heavymeta.setDisplayName(ChatColor.AQUA + "Heavy");
        Heavy.setItemMeta(Heavymeta);
      
        i.setItem(1, Heavy);
      
        player.openInventory(i);  
    }
  
    @EventHandler
    public void onInventoryClickEvent(InventoryClickEvent e) {
        if(ChatColor.stripColor(e.getInventory().getName()).equalsIgnoreCase("Heavy"))
        return;
        Player player = (Player) e.getWhoClicked();
        e.setCancelled(true);
      
        if(e.getCurrentItem() == null || e.getCurrentItem().getType() == Material.AIR || !e.getCurrentItem().hasItemMeta()) {
            player.closeInventory();
            return;
        }
        switch (e.getCurrentItem().getType()) {
        case DIAMOND_CHESTPLATE:
            player.getInventory().addItem(new ItemStack(Material.DIAMOND_SWORD));
            player.sendMessage(ChatColor.GREEN + "You have been given kit " + ChatColor.BLUE + "Heavy");
            break;
        default:
            player.closeInventory();
            break;
        }
    }

Please help!

Idk what to do

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

I am decent with inventory menus and can probably help but I am confused as to what isn't working

 

.

 

@Jackson12

1. if(ChatColor.stripColor(e.getInventory().getName()).equalsIgnoreCase("Heavy"))
2. return;
3. e.setCancelled(true);

You cancel everyInventoryCLick except the one in your created inventory

 

Ok i fixed it, I changed e.setCancelled(true); to e.setCancelled(false);