There is one issue with the default aopc. We have few tests that are time sensitive, testing things like expiration time.. things like that. Those tests are failing with the default aopc and passing with the ClassicVersion. That makes suspect that there is some performance issue (maybe excessive classLoader) with the newer version. You should investigate. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4143258#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...