Looks like you did a exploded deployment of an application named "deploy". Either that, or you created a directory named "deploy" under the existing "deploy" directory and copied the contents of your application there. Based on the errors, I would guess that the application is an enterprise application, and thus it requires a ".ear" extension. Either package your application as a file named xxx.ear (where 'xxx' is anything you want) and copy that file to the deploy directory. Or renamed the deploy directory you created to 'xxx.ear' (i.e., you will end up with /opt/jboss/jboss-4.2.1.GA/server/default/deploy/xxx.ear). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073411#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...