I havent used JPetStore myself and the reason why i asked you to post the jboss-web.xml was the exception stacktrace that you had posted which mentioned something on similar lines. Can you post the entire exception stacktrace that you are seeing? Better still, can you post the file which contains a resource-ref entry for jdbc/petstore1. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3982589#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...