Unfortunately, the exception stack trace gives no clue as to the root cause (there is usually as "caused by" stack trace following geneic exception such as "servlet threw exception". Regardless of that, I think that a different approach would be better. Try this. Create a *-ds.xml file that describes your data source. So all of the information you have regarding the driver name and connection would go there. Then change your code to do: InitialContext ic = new InitialContext(); DataSource ds = (DataSource)ic.lookup("java:ds-jndi-name"); Connection conn = ds.getConnection(); where ds-jndi-name is the value of < jndi-name > in the *-ds.xml file. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3987326#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...