As Joshua says, use JSF RI 1.2 if you want to use JBoss AS 4.2 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4101194#4101194 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4101194