"emmartins" wrote : Should instead the domain be always used for loading the class? I don't think you should be using domain, as that is impl specific. You should be asking yourself why is classloading failing. We have some info exposed, and there was a request from Scott, saying the impl should help as much as possible to resolve why the class couldn't be resolved, but I currently cannot recall what we did about that - apart from JMX exposure. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4189520#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...