I am having a similar problem. A netbeans web application deploiement to JBoss 4.2.2 fails with the following error: ... 12:11:11,171 ERROR [[/faces-tutorial2]] Exception sending context initialized event to listener instance of class org.jboss.web.jsf.integration.config.JBossJSFConfigureListener java.lang.ClassCastException: com.sun.faces.config.WebConfiguration at com.sun.faces.config.WebConfiguration.getInstance(WebConfiguration.java:135) at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:228) at org.jboss.web.jsf.integration.config.JBossJSFConfigureListener.contextInitialized(JBossJSFConfigureListener.java:69) ... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117502#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...