Pete wrote up a nice blog post on that at http://pmuir.bleepbleep.org.uk/2007/04/building-plugin-system-in-facelets.html View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4045227#4045227 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4045227