This is a problem with jars on your classpath. Hard to say exactly what, but you are in conflict with the JBoss JSF jars that come with AS. Either remove the default JSF impl or remove yours. Or this may work: | <context-param> | <param-name>org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL</param-name> | <param-value>true</param-value> | </context-param> | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4204611#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...