See if this is of any help http://wiki.jboss.org/wiki/Wiki.jsp?page=HotDeployClassCastExceptions View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4090474#4090474 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4090474