I'm following up my previous post. Looking in the server,log file I noticed 11:11:22,196 WARN [ServiceController] Problem starting service jboss.j2ee:service=EJB3,module=beans.jar | java.lang.NoClassDefFoundError: javax/ejb/InvocationContext Any suggestion ? I installed the server using jems-installer 1.2.0GA and I have chosen EJB3 config. Many thanks in advance, Nicolas View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4054633#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...