Problemas com ejb3 e weblogic

Programação Java
#1

Beleza galera?

Estou testando o weblogic 10,0 com ejb3 e por algum motivo não consigo fazer injeção do ejb3 em um servlet.

MNeus ejbs:

package uk.co.regdeveloper.webservice;

import javax.ejb.Stateless;

/**
 * Session Bean implementation class TesteInjecao
 */
@Stateless(mappedName = "TesteInjecao")
public class TesteInjecaoBean implements TesteInjecao {

    /**
     * Default constructor. 
     */
    public TesteInjecaoBean() {
        // TODO Auto-generated constructor stub
    }
    
    public String echo(String e) {
    	Teste teste = new Teste();
    	teste.setTeste("Web Service Echo !!!!!!!!!!!!1 + " + e);
            return teste.getTeste();
    }

}

package uk.co.regdeveloper.webservice;
import javax.ejb.EJB;
import javax.ejb.Stateless;

@Stateless(mappedName="EchoBean")
//@WebService(endpointInterface = "uk.co.regdeveloper.webservice.Echo")
public class EchoBean implements Echo{
	
	@EJB(beanName="TesteInjecaoBean")
	private TesteInjecao teste;
	
	public String echo(String e) {
		return teste.echo(e); 
	}
}

meu Servlet

package br.com.teste;

import java.io.IOException;
import java.util.Hashtable;

import javax.ejb.EJB;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import uk.co.regdeveloper.webservice.Echo;

/**
 * Servlet implementation class EchoServlet
 */
public class EchoServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
	
	@EJB(beanName="EchoBean")
	private Echo ejb;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public EchoServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		String returno = "ejb não encontrato!!! "+ejb;
		returno = ejb.echo(request.getParameter("echo"));
		response.getWriter().print(returno);
		
	}

}

Tentei fazer lookup diretamernte e me deu ese erro:

javax.naming.NameNotFoundException: Unable to resolve 'EchoBean'. Resolved ''; remaining name 'EchoBean'

Agradeço a oportunidade!

#2