Hi All, I have an existing web application that is currently operational under 4.0.5.CR1. The login page (login.jsp) is a very simple struts page that does exactly what you think it does. I am attempting to migrate to 4.2.0, but when I install my new web application, I get a JasperException when I attempt to load this page. This is the output in the log: 2007-03-09 17:17:23,786 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/DAXAppWeb].[jsp]] Servlet.service() for servlet jsp threw except ion org.apache.jasper.JasperException: Unable to compile class for JSP: Stacktrace: at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:85) at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330) at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:415) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:308) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:286) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:273) at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:308) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.jboss.web.tomcat.service.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:87) at org.jboss.web.tomcat.service.session.JvmRouteValve.invoke(JvmRouteValve.java:84) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:437) at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:447) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445) at java.lang.Thread.run(Thread.java:619) Does anybody have any thoughts on what might be causing this, or how I might increase the granularity of the logging to find out what the compile-time error is? Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4026814#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...