final ItemStack item = new ItemStack(Material.STICK);
final NamespacedKey key = new NamespacedKey(main, "testttt");
final ShapedRecipe recipe = new ShapedRecipe(key, item);
recipe.shape(" E ", " E ", " E ");

final ItemStack ingredient = new ItemStack(Material.STICK);
final ItemMeta itemMeta = ingredient.getItemMeta();
itemMeta.setDisplayName("test");
ingredient.setItemMeta(itemMeta);
final RecipeChoice.ExactChoice choice = new RecipeChoice.ExactChoice(ingredient);
recipe.setIngredient('E', choice);
Bukkit.addRecipe(recipe);