You have to specify the entity class for selectMany. See <s:convertEnitity /> docs. Regards Felix View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4043715#4043715 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4043715