Returning null when trying to check custom craft ingredients for enchantments

I'm trying to check if an item put in a crafting table has an enchantment to put on the result. What I'm doing here is making a Map of all of the ingredients, then checking if the ingredient with the '?' symbol (Which is the iron pickaxe) has an unbreaking enchantment on it. It keeps on returning null and I don't know how to fix it.

Code:

@SuppressWarnings("unchecked")
    public void redoluitIronRecipe() {

        @SuppressWarnings("deprecation")
        ShapedRecipe iDiamondRecipe = new ShapedRecipe(pick);

        pick.addUnsafeEnchantment(NEMain.r, 1);
        ItemMeta pickMeta = pick.getItemMeta();
        pickMeta.setLore(Arrays.asList(ChatColor.GRAY + "Redoluit 1"));
        pick.setItemMeta(pickMeta);

        Map<Character, ItemStack> ingredients = iDiamondRecipe.getIngredientMap();

        iDiamondRecipe.shape(" ^ ", "^?^", " ^ ");
        iDiamondRecipe.setIngredient('^', Material.LAVA_BUCKET);
        iDiamondRecipe.setIngredient('?', Material.IRON_PICKAXE);
     
        if (ingredients.get('?').containsEnchantment(Enchantment.DURABILITY)) {
            System.out.println("Has Unbreaking!");
        } else {
            return;
        }

        Bukkit.addRecipe(iDiamondRecipe);
    }

 

Could you show us the code for

Code:

iDiamondRecipe.getIngredientMap();

From what I understood you get a NullPointerException when you check

Code:

ingredients.get('?').containsEnchantment(Enchantment.DURABILITY)

There can be a few things here. First the map itself could be null, second there is no ? key in your map and third the value (ItemStack) for the key ? is null.