Problema JNDI

/*
 * BeanClient.java
 *
 * Created on 24 de Novembro de 2004, 16:23
 */
import javax.naming.*;
import javax.rmi.PortableRemoteObject;
import java.util.Properties;
import com.testeejb.*;
/**
 *
 * @author  JVictor
 */
public class BeanClient {
    
    public static void main(String[] args)
    {
        Properties prop = new Properties();
        prop.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
        prop.put(Context.PROVIDER_URL, "localhost:8080");
        
        try
        {
            InitialContext jndiContext = new InitialContext(prop);
            System.out.println("got context");
            
            Object ref = jndiContext.lookup("Adder");
            System.out.println("referencia");
            
            AdderHome home = (AdderHome) PortableRemoteObject.narrow(ref, AdderHome.class);
            
            Adder adder = home.create();
            System.out.println("2 + 5 = " + adder.add(2, 5));
        }
        catch (Exception ex)
        {
            ex.printStackTrace();
            System.out.println("Deu pau");
        }
    }
    
}