My fault, Seam Filter on web.xml was present twice. After removing, everything is working just fine. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4090803#4090803 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4090803