That message comes from Tomahawk. You should be OK, but note that the WAR_BUNDLES_JSF_IMPL flag has not been tested with MyFaces 1.2. If you want to get rid of that message and make sure you are totally safe, you can remove jsf-impl.jar and jsf-api.jar from deploy/jboss-web.deployer/jsf-libs. Then, comment out the following in deploy/jboss-web.deployer/conf/web.xml: <!-- JBossInjectionProvider provides resource injection for managed beans. --> | <!-- See JSF 1.2 spec section 5.4 for details. --> | <context-param> | <param-name>com.sun.faces.injectionProvider</param-name> | <param-value>org.jboss.web.jsf.integration.injection.JBossInjectionProvider</param-value> | </context-param> | | <!-- Configures JSF for a web application if the javax.faces.webapp.FacesServlet is declared --> | <!-- in web.xml. --> | <listener> | <listener-class>org.jboss.web.jsf.integration.config.JBossJSFConfigureListener</listener-class> | </listener> | | <!-- Listens to all web app lifecycle events so that @PreDestroy can be called on --> | <!-- JSF managed beans that go out of scope. You can comment this out if you --> | <!-- don't use JSF or you don't use annotations on your managed beans. --> | <listener> | <listener-class>com.sun.faces.application.WebappLifecycleListener</listener-class> | </listener> | | <init-param> | <description>JSF standard tlds</description> | <param-name>tagLibJar0</param-name> | <param-value>jsf-libs/jsf-impl.jar</param-value> | </init-param> I would also point out that the RI is much older and more likely to be stable. Plus, the annotation processor is integrated with JBoss so you can use things like @PreDestroy and @PostConstruct on your managed beans. You can also use JBoss Serialization to potentially speed up your application. So I encourage you to give the RI a try. There is really no reason to change the JSF implementation. Would you like to use a different JSP implementation with JBoss? I can show you how to do that too. But nobody would think of such a thing! The same goes for JSF. It's now part of the container. Stan Silvert http://jsf.jboss.org View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4067446#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...