I was getting this error also. I have another struts application working in my environment so I copied the struts files and checked the versions of dtds in the .xml files to match that environment. Voila, it started working. My environment had struts-nested.tld and the download was using nested-tags.tld. I'm not experienced enough at this point to explain exactly what the problem was but seems there was some inconsistency in the environment.
--- "Sinclair, Mark" <[EMAIL PROTECTED]> wrote: > > Folks > > I am having problems getting the keyboardmonkey > nested tags tutorial > working. I can get only the most basic part working > and get the hello > message, I tried making the changes up to milestone > 1 with no success and > even after I download and use the milestone one war > file that is on the > site I still get the following error: > > HTTP Status 500 - > > type Exception report > > message > > description The server encountered an internal error > () that prevented it > from fulfilling this request. > > exception > > org.apache.jasper.JasperException > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2 > 54) > at > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) > at > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > at > javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application > FilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh > ain.java:193) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja > va:256) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja > va:191) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve. > java:171) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java > :174) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594) > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne > ction(Http11Protocol.java:392) > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav > a:619) > at java.lang.Thread.run(Thread.java:484) > > > root cause > > java.lang.NullPointerException > at java.util.Hashtable.get(Hashtable.java:320) > at > org.apache.jasper.runtime.PageContextImpl.findAttribute(PageContextImpl.java > :308) > at > org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:663) > at > org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:710) > at > org.apache.struts.taglib.html.BaseFieldTag.doStartTag(BaseFieldTag.java:193) > at > org.apache.struts.taglib.nested.html.NestedTextTag.doStartTag(Unknown > Source) > at > org.apache.jsp.tutorial_jsp._jspx_meth_nested_text_0(tutorial_jsp.java:122) > at > org.apache.jsp.tutorial_jsp._jspx_meth_html_form_0(tutorial_jsp.java:93) > at > org.apache.jsp.tutorial_jsp._jspService(tutorial_jsp.java:66) > at > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137) > at > javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2 > 10) > at > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) > at > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > at > javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application > FilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh > ain.java:193) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja > va:256) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja > va:191) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve. > java:171) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java > :174) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594) > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne > ction(Http11Protocol.java:392) > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav > a:619) > at java.lang.Thread.run(Thread.java:484) > > > > After downloading the war file all I did was copy > the common-xxx jar files > and the struts.jar files to the WEB-INF lib > directory and compile the > MonkeyBean correctly in the relevant directory. The > class file is obviously > found as this is not the error that I get. I am > using Tomcat 4.1.24 and it > is correctly in > C:\jakarta-tomcat-4.1.24\webapps\nested-tutorial\WEB-INF\classes\com\km\stru > ts\tutorial directory. > > The problem is eliminated if I remove the nested tag > stuff from the > tutorial.jsp i.e. take out > > Monkey Name: <nested:text property="monkeyName" > /><br> > Monkey Age: <nested:text property="monkeyAge" > /><br> > > then app does display a blank jsp page. The version > of struts that I use is > 1.1-b2 beta version. Any ideas/things that I can > double check, I would > appreciate it as using the nested tags appears to be > exactly what I am > looking for. > If anybody needs any more info please let me know. > > Cheers in Advance, > Mark > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
