Invisible minecraft enchantments

gistfile1.txt

/*
 * File name: Glow.java
 */
 
 import java.lang.reflect.Field;

import org.bukkit.enchantments.Enchantment;
import org.bukkit.enchantments.EnchantmentTarget;
import org.bukkit.inventory.ItemStack;

public class Glow extends Enchantment {

	public Glow(int id) {
	  	super(id);
  	}

  	@Override
  	public boolean canEnchantItem(ItemStack arg0) {
	  	return false;
  	}

  	@Override
  	public boolean conflictsWith(Enchantment arg0) {
	  	return false;
  	}

  	@Override
  	public EnchantmentTarget getItemTarget() {
      	return null;
  	}

  	@Override
  	public int getMaxLevel() {
	  	return 0;
  	}

  	@Override
  	public String getName() {
  		return null;
  	}

  	@Override
  	public int getStartLevel() {
  		return 0;
  	}
  	
  	public void registerGlow() {
        try {
            Field f = Enchantment.class.getDeclaredField("acceptingNew");
            f.setAccessible(true);
            f.set(null, true);
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        try {
            Glow glow = new Glow(70);
            Enchantment.registerEnchantment(glow);
        }
        catch (IllegalArgumentException e){
        }
        catch(Exception e){
            e.printStackTrace();
        }
    }

}

/*
 * Put this in the file that extends JavaPlugin
 */
 
 public void onEnable() {
 		Glow glow = new Glow(70);
 		glow.registerGlow();
 }