Problem with getting what a slot contains

Hey! this is my code:

Code (Java):

 
    @EventHandler
    public void onCraft(InventoryClickEvent event) {
        Player player = (Player) event.getWhoClicked();

        if (player.getOpenInventory().getTitle().equals(ChatColor.GREEN + "" + ChatColor.BOLD + "Crafting Table")) {
            if (player.getOpenInventory().getItem(12) == new ItemStack(Material.STONE)) {

                ItemStack glass = new ItemStack(Material.STAINED_GLASS_PANE, 1, (byte) 5);
                ItemMeta meta = glass.getItemMeta();
                meta.setDisplayName(ChatColor.GOLD + "Yes");
                glass.setItemMeta(meta);

                ItemStack glass1 = new ItemStack(Material.STAINED_GLASS_PANE, 1, (byte) 14);
                ItemMeta meta1 = glass1.getItemMeta();
                meta1.setDisplayName(ChatColor.GOLD + "No");
                glass1.setItemMeta(meta1);

                Inventory crafting2 = Bukkit.createInventory(null, 27,
                        ChatColor.GREEN + "" + ChatColor.BOLD + "Want to craft Slabs?");
                crafting2.setItem(12, glass1);
                crafting2.setItem(14, glass1);

                player.openInventory(crafting2);
            }
        }
    }

But this doenst work. Can someone help me find the problem? No errors are shown in the console and yes i registered the event.

 

that didnt work aswell

 

Code (Java):

 
    @EventHandler
    public void onInteract(PlayerInteractEvent event) {
        Player player = event.getPlayer();
        Block block = event.getClickedBlock();
        Material material = block.getType();

        if (material == Material.WORKBENCH) {
            if (event.getAction() == Action.RIGHT_CLICK_BLOCK) {
                event.setCancelled(true);

                ItemStack glass = new ItemStack(Material.STAINED_GLASS_PANE, 1, (byte) 15);
                ItemMeta meta = glass.getItemMeta();
                meta.setDisplayName(ChatColor.GOLD + "Crafing Table");
                glass.setItemMeta(meta);

                Inventory crafting = Bukkit.createInventory(null, 45, ChatColor.GREEN + "" + ChatColor.BOLD + "Crafting Table");
                crafting.setItem(0, glass);
                crafting.setItem(1, glass);
                crafting.setItem(2, glass);
                crafting.setItem(3, glass);
                crafting.setItem(4, glass);
                crafting.setItem(5, glass);
                crafting.setItem(6, glass);
                crafting.setItem(7, glass);
                crafting.setItem(8, glass);
                crafting.setItem(9, glass);
                crafting.setItem(10, glass);
                crafting.setItem(11, glass);
                crafting.setItem(15, glass);
                crafting.setItem(16, glass);
                crafting.setItem(17, glass);
                crafting.setItem(18, glass);
                crafting.setItem(19, glass);
                crafting.setItem(20, glass);
                crafting.setItem(24, glass);
                crafting.setItem(25, glass);
                crafting.setItem(26, glass);
                crafting.setItem(27, glass);
                crafting.setItem(28, glass);
                crafting.setItem(29, glass);
                crafting.setItem(33, glass);
                crafting.setItem(34, glass);
                crafting.setItem(35, glass);
                crafting.setItem(36, glass);
                crafting.setItem(37, glass);
                crafting.setItem(38, glass);
                crafting.setItem(39, glass);
                crafting.setItem(40, glass);
                crafting.setItem(41, glass);
                crafting.setItem(42, glass);
                crafting.setItem(43, glass);
                crafting.setItem(44, glass);

                player.openInventory(crafting);
            }
        }
    }[/CODE
]

 

that does not work either

 

did that work for you? because it doesnt work for me

 

yes i did register it

 

yes it opens when you click it

 

i know but if i do that it doesnt work