I am receiving the following error message when trying to deploy my application on jboss: javax.faces.FacesException: Can't parse configuration file: jar:file:/C:/jboss-4.2.2-1-jsf/server/default/deploy/pims.ear/lib/jsf-facelets.jar!/META-INF/faces-config.xml: Error at line 8 column 16: Error at (8, 16: com.sun.faces.config.beans.ComponentBean cannot be cast to com.sun.faces.config.beans.ComponentBean After much reading about JBoss classloading I suspect that its because the class is being loaded by two classloaders and is then causing problems.. I believe this class is located in jsf-impl.jar. Looking at the loader repository for the ear for my jsf web app, there are two references to jsf-impl.jar. The unexpected on being in the tmp folder. file:/C:/jboss-4.2.2-1-jsf/server/default/deploy/pims.ear/lib/jsf-impl.jar file:/C:/jboss-4.2.2-1-jsf/server/default/tmp/deploy/tmp25412jsf-impl.jar Any ideas how I can solve this problem? It´s driving me nuts... Thanks, David View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4186996#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...