Does anyone know what you'd need to do to get this to work for JBoss AS4.2.2GA? Example can be downloaded from http://www.horstmann.com/corejsf/corejsf2-examples.zip Example is in folder ch12\seam You need to add commons-el to web\WEB-INF\lib folder. You can get that from http://commons.apache.org/downloads/download_el.cgi You need to modify web.xml to add this to it in order for JBoss to try & work with myfaces. | <context-param> | <param-name>org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL</param-name> | <param-value>true</param-value> | </context-param> | To build seam.war run | ant -Dapp=ch12\seam from folder you extract zip to. | and try deploying View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4158200#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...