So what does this mean to me? I've got a JSP file in a WAR that works fine in 4.0.5 and gets a JasperException when deployed in 4.2.0. Are you saying that because there is no listing in the stack trace, that the error is not in the JSP? There's almost nothing in the page except for some references to struts: (e.g) <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %> <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %> Could it be these? Paul View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4027688#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...