Please post the source code for the Main class. Also, there should be a corresponding exception stack trace on the server, post that. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4211169#4211169 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4211169