Thanks for your help, i tried using Thread.currentThread().setContextClassLoader ( DummyTacheEgoiste1HAS.class.getClassLoader() ); and it works even if put again the isolation parametrer. Can't believe i didn't think about it with the more complicated stuff i tried, oh well. I have already read those looks but now that i know it works like this i'm going to read it again. cheers View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4209521#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...