I don't know if it's working with cluster or not. But cluster and JBoss Portal are two different things, so I don't understand your question. I do know that JBoss Portal is using a custom classloader to deal with some of the JSF issues discussed earlier in this thread. For your OutOfMemoryError, there is a good wiki on that here: http://wiki.jboss.org/wiki/Wiki.jsp?page=OutOfMemoryExceptions Stan View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4097100#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...