I after upgrading to jboss 5.0 beta 1 I had difficulties to run my application. The jars : /commons-digester-1.6.jar and commons-beanutils.jar weren't any more in the classpath of jboss. After copying them to jboss_home/server/default/deploy/jbossweb-tomcat55.sar/jsf-libs/ everything worked again. Did I miss something in the new documentation or did you forget to package them ? Or must I package them from now on in my web app ?
These jars no longer exist in JBoss 5. They used to be needed for MyFaces support, but JBoss 5 ships with the Glassfish implementation of JSF 1.2.
So, if you need these jars then you should bundle them with your application.
Also see http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossWithJSFCDDL