Always look for the "caused by" clause of the first exception, that it the root cause. In this case, it is a class cast problem. I suspect that having a copy of portlet-api-lib.jar in your WAR file could cause this. Remove the portlet-api-lib.jar from your WEB-INF/lib directory; you don't need it because it already comes with JBoss Portal. If that does not work, let me know and I'll try your code myself. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4224459#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...