Hi Stan, I deployed my app to JBoss 4.2CR1 and the good news is the malformed error has disapeared! The bad news is I am getting the same error from the woodstock components: | 12:42:28,578 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception | org.apache.jasper.JasperException: Unable to compile class for JSP: | | An error occurred at line: 5 in the jsp file: /Index.jsp | The method setId(String) in the type UIComponentClassicTagBase is not applicable for the arguments (JspValueExpression) | 2: <jsp:root version="1.2" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:jsp="http://java.sun.com/JSP/Page" xmln | s:webuijsf="http://www.sun.com/webui/webuijsf"> | 3: <jsp:directive.page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"/> | 4: <f:view> | 5: <webuijsf:page binding="#{Index.index}" id="index"> | 6: <webuijsf:html binding="#{Index.html}" id="html"> | 7: <webuijsf:head binding="#{Index.head}" id="head"> | 8: <webuijsf:link binding="#{Index.link1}" id="link1" url="/resources/stylesheet.css"/> | It's a little bit strange becuase I'm not using a jspValueExpression on the id attribute (I assume that means a #{...} expression). I checked the TLD file for the components and could find nothing untoward there. I can only assume that the version of UIComponentClassicTagBase in JBoss is not what the components are expecting. Do you know what version if the jsf-api/impl are used by 4.2? Any other suggestions would be most welcome. Regards, Jason View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4027903#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...