The *-ds.xml file looks OK. You are using Hibernate, and a very old version of it (based on the package names). What database connection configuration have you done in Hibernate? Or was that done in Spring? Depending on that configuration, you might not even be using the connections defined by the *-ds.xml file. Also, which Oracle JDBC driver are you using? Name and version number, please. Perhaps someone will notice an issue with that, if the driver is the problem. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4225443#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...