Dependency injection of EJB in Servlet is not working with Jetty

Hello:

I've been using Jetty with JOnAS 5.2.0-M3 with this fix:
http://jira.ow2.org/browse/JONAS-297 

I've just realized that dependency injection of an EJB into a Servlet is no longer working:

public class FoobarServlet extends HttpServlet {
	
	@EJB
	private MyBeanLocal myBean;

myBean is null !
Same behavior whether the onDemand option is turned on or not.
No exception or relevant messages in the JOnAS log.
The injection works when I fall back to Tomcat.

Did I forget something in the configuration ?

Regards,
Frederic Dang Tran