The issue is fixed, but not sure what is the real cause. I was using Queues backed up by MySQL datasource defined in default-ds.xml and i configured JBossMQ in deploy-hasingleton/jms to use DefaultDS which was pointing to MySQL db. To fix the problem i simply created another copy of default-ds.xml and named it mysql-ds.xml file and datasource as MySqlDs and configured JBossMQ to use this datasource instead of DefaultDS and it worked :P Both MySqlDs and DefaultDS point to the same database not sure why it doesn't work with DefaultDS. Anyone has any idea? Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4165933#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...