Yes i was do that, But always the same problem, my question is : is there any specific configuration to use oracle db under JBoss ? where Jboss retreive the oracle driver and classes (ResultSet, Oracle Connection, ...), becuase when i delete oracle-9.2.0.3-ojdbc14.jar from my application, the application was successfuly loaded ? why ? Thank's. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4039940#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...