Try adding jboss-aop-jdk50-client.jar in JBOSS_HOME/client directory and restart the server View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4160836#4160836 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4160836