I want to know why? My database is oracle 10g, os is rh linux 4 .where I using datasources is error. The error is 16:54:49,810 INFO [TxConnectionManager] Unregistered handle that was not registered! org.jboss.resource.adapter.jdbc.WrappedConnection@1d479cf for managedConnection: org.jboss.resource.adapter.jdbc.local.LocalManagedConnection@14f79cb who can help me. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960867#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...