same exception happened by jboss 4.0.5.GA seam 1.1.5 and seam1.1.1 jbosside 2.0b2 has hibername tool 3.2beta8 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4010651#4010651 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4010651