What is the filename of the datasource and the filename of your application (from the logs i see its jbas5.war, right?) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4162448#4162448 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4162448