What r u casting it too and can you post your code here? Also, see what it is returning by retrieving object as java.lang.Object (which will never throw ClassCastException) and see what it is. i.e., | Object obj = ds.getConnection().getMetaData(); | System.out.println("Object class: " + obj.getClass().getName()); | Regards Oleg Zhurakousky View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960833#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...