Hi! I've made a search by entire google but i coudnt solve this, yet, I read all those threads and i wasnt able to find a solution: http://www.jboss.org/index.html?module=bb&op=viewtopic&t=82946&am... http://www.jroller.com/eyallupu/entry/solving_simultaneously_fetch_multip... http://www.jroller.com/eyallupu/entry/hibernate_exception_simultaneously_... http://forum.hibernate.org/viewtopic.php?p=2310316& Even if i use Set and HasSet it is not working. I can't use Lazy Loading, just EAGER. What am i supose to do now? There is no solution working here, annotation @IndexColumn and Sets dont seems to fit (i tried before posting). Please, somebody help me, i dont know what to do now =/ Thank you! View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4217598#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...