hello, I am ramu, i am getting a problem in many to many mapping .my entities are student and courses student--->courses is many to many. while retriving courses from student ie i am getting the following exception failed to lazily initialize a collection of role can any body suggest where i am doing mistake. Thank you KRamu View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192675#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...