Probeme avec .SetIngrdient

package fr.zvenoss.MonPlugin;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.event.Listener;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.ShapedRecipe;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

public class MonPlugin extends JavaPlugin implements Listener{

    public void onEnable(){
        System.out.println(ChatColor.YELLOW+"Mon super plugin > active !");
        PluginManager pm = getServer().getPluginManager();
        pm.registerEvents(new MesCommandes (this), this);
        pm.registerEvents(new Guns (this), this);
        pm.registerEvents(new EffetDeSang (this), this);

        ShapedRecipe recette1 = new ShapedRecipe(new ItemStack(Material.ANVIL));
        recette1.setIngredient(" ", Material.STONE);


    }
    public void onDisable(){
        System.out.println(ChatColor.YELLOW+"Mon super plugin > Desactive !");
    }

}