The problem is solved. I was using Jboss5.0.0beta. so there was incompatibility. Now i am using jboss4.0.5.GA. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4031499#4031499 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4031499