Irfan Kapadiya [http://community.jboss.org/people/desertrose_ik] created the discussion "Re: JBoss 4.2.2 with myfaces - java.lang.RuntimeException: C" To view the discussion, visit: http://community.jboss.org/message/575819#575819 -------------------------------------------------------------- Hi Dave, I hope you got solution for your problem. I just posted who has same problem. I used myfaces1.2.9. Its working with following solution. insert in application web.xml <context-param> <param-name>org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL</param-name> <param-value>true</param-value> </context-param> comment below code in   jboss-4.2.2.GA\server\all\deploy\jboss-web.deployer\conf\web.xml file and  jboss-4.2.2.GA\server\default\deploy\jboss-web.deployer\conf\web.xml file <listener>      <listener-class>org.jboss.web.jsf.integration.config.JBossJSFConfigureListener</listener-class> </listener> <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>         <init-param>            <description>JSTL standard tlds</description>            <param-name>tagLibJar1</param-name>            <param-value>jstl.jar</param-value>         </init-param> Regards, Irfan -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/575819#575819] Start a new discussion in Beginner's Corner at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]