anonymous wrote : To my understanding, do you suggest the following config ? <attribute name="Java2ClassLoadingCompliance">true</attribute> | <attribute name="UseJBossWebLoader">false</attribute> NO. Let it be: <attribute name="Java2ClassLoadingCompliance">false</attribute> | <attribute name="UseJBossWebLoader">false</attribute> With this setting and with Classloader logging enabled: http://wiki.jboss.org/wiki/Wiki.jsp?page=EnableClassloaderLogging post the classloader logs. That will surely help in understanding, whats going on internally. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3957757#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...