How is your application packaged? Is it an ear or a war? jar -tf myAppName.ear replace myAppName.ear with the name and extension of your archive that is deployed in JBoss. Please post the output. This will display the contents of your archive. I wanted to make sure that we have classes at the right place and they are being picked up appropriately. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981495#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...