How do i get ItemMeta of MaterialData?!

I am trying to be able to get the item meta for the MaterialData so i can make it that you have to have a peice of obsidian named "&7Obsidian Casing" in order to complete the craft. Any help?

public void obsidiancasing() {
ItemStack obsidiancasing = new ItemStack(Material.STONE, 1);
MaterialData data = new MaterialData(Material.OBSIDIAN);
ItemMeta obcasing = (ItemMeta) data.getItemMeta();
ShapedRecipe pbrecipe = new ShapedRecipe(obsidiancasing);
pbrecipe.shape(
"PPP",
" ",
" ");
pbrecipe.setIngredient('P', data);
Bukkit.getServer().addRecipe(pbrecipe);
}

 

First off, you can paste code with this button: http://prntscr.com/82fgtt . You don't need MaterialData. Instead use the ItemMeta from your ItemStack. Then change the display name of the ItemMeta. Make sure you set the ItemStack to meta too! Example:

Code:

ItemStack i = new ItemStack(Material.DIAMOND_SWORD);
//Meta variable
ItemMeta meta = i.getItemMeta();
//set the display name
meta.setDisplayName(ChatColor.RED + "My Epic Sword");
//add the data to the item
i.setItemMeta(meta);