I found someone how have exaclty the same problem. here is the link : http://jira.jboss.com/jira/browse/EJBTHREE-823 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4080727#4080727 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4080727