hmm, in this context, the root cause of the error suggests that, as you say, servlet.jar is for some reason being found as incompatible.
Is this the first time you've used any servlet technology on the machine its failing on? I ask because I'm thinking along the lines that there might be other, different, copies of servlet.jar on the machine, perhaps listed in your CLASSPATH environment var? at the very least, its probably worth searching for that filename across your entire hard drive to see if there are any possible conflicting copies..? ian ----- Original Message ----- From: "Caroline Clewlow" <[EMAIL PROTECTED]> To: "Tomcat Users List" <[EMAIL PROTECTED]> Sent: Friday, December 21, 2001 3:18 PM Subject: Re: Re: HTTP error 503. Please please help ! > Directly from Tomcat ...... no webserver involved. It's happening with the example jsp files aswell - not my own code. > > I'm assuming its some problem with servlet.jar. > Below is a sample from my logfile.txt. If you have time to look at it you'll be able to see the exact errors I'm getting. > > Thanks for all your help btw. > > Caroline > > _________________________- > > 2001-12-21 12:50:01 StandardWrapper[:default]: Loading container servlet default > 2001-12-21 12:50:01 StandardWrapper[:invoker]: Loading container servlet invoker > 2001-12-21 12:50:01 StandardWrapper[:jsp]: Marking servlet jsp as unavailable > 2001-12-21 12:50:01 StandardContext[]: Servlet threw load() exception > javax.servlet.ServletException: Error instantiating servlet class org.apache.jasper.servlet.JspServlet > at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:89 3) > at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:808) > at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java: 3266) > at org.apache.catalina.core.StandardContext.start(StandardContext.java:3395) > at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:785) > at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:454) > at org.apache.catalina.core.StandardHost.install(StandardHost.java:714) > at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:300) > at org.apache.catalina.startup.HostConfig.start(HostConfig.java:389) > at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:232) > at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor t.java:155) > at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1131) > at org.apache.catalina.core.StandardHost.start(StandardHost.java:614) > at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123) > at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:307) > at org.apache.catalina.core.StandardService.start(StandardService.java:388) > at org.apache.catalina.core.StandardServer.start(StandardServer.java:505) > at org.apache.catalina.startup.Catalina.start(Catalina.java:781) > at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) > at org.apache.catalina.startup.Catalina.process(Catalina.java:179) > at java.lang.reflect.Method.invoke(Native Method) > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243) > ----- Root Cause ----- > java.lang.IncompatibleClassChangeError: Implementing class > at java.lang.ClassLoader.defineClass0(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:486) > at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111) > at java.net.URLClassLoader.defineClass(URLClassLoader.java:248) > at java.net.URLClassLoader.access$100(URLClassLoader.java:56) > at java.net.URLClassLoader$1.run(URLClassLoader.java:195) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at org.apache.catalina.loader.StandardClassLoader.findClass(StandardClassLoader .java:674) > at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader .java:1093) > at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader .java:992) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) > at java.lang.Class.newInstance0(Native Method) > at java.lang.Class.newInstance(Class.java:237) > at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:88 4) > at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:808) > at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java: 3266) > at org.apache.catalina.core.StandardContext.start(StandardContext.java:3395) > at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:785) > at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:454) > at org.apache.catalina.core.StandardHost.install(StandardHost.java:714) > at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:300) > at org.apache.catalina.startup.HostConfig.start(HostConfig.java:389) > at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:232) > at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor t.java:155) > at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1131) > at org.apache.catalina.core.StandardHost.start(StandardHost.java:614) > at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123) > at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:307) > at org.apache.catalina.core.StandardService.start(StandardService.java:388) > at org.apache.catalina.core.StandardServer.start(StandardServer.java:505) > at org.apache.catalina.startup.Catalina.start(Catalina.java:781) > at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) > at org.apache.catalina.startup.Catalina.process(Catalina.java:179) > at java.lang.reflect.Method.invoke(Native Method) > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243) > > > > 12/21/01 3:11:32 PM, "ian silvester" <[EMAIL PROTECTED]> wrote: > > >fair point - are you using a webserver in front of Tomcat Caroline? or does > >the error get thrown if you browse to Tomcat directly at port 8080 (by > >default)? > > > >ian > > > >----- Original Message ----- > >From: "Fred Schroomnig" <[EMAIL PROTECTED]> > >To: ""Tomcat Users List"" <[EMAIL PROTECTED]> > >Sent: Friday, December 21, 2001 3:07 PM > >Subject: RE: Re: HTTP error 503. Please please help ! > > > > > >> Excuse my naiv question, but if I understand this correctly then the 503 > >error is returned to the browser (client) by the Webserver due to some kind > >of problem between the Webserver and the Appserver, in this case TomCat. If > >I had a servlet that sent of a request to some kind of other server and > >receive in return the 503 Status Code then that would mean that the > >webserver that I sent the request to is having problems talking to the > >Appserver behind it. Did I understand this correctly? The reason I'm asking > >is because I had a similar problem in one of my apps not to long ago. > >> > >> Thanks in Advance, Fred > >> > >> > >> > >> [EMAIL PROTECTED] wrote: > >> > >> > > >> >5xx errors are generated by the server when it realises that it cannot > >> >process a request or something prevented it from handling the request > >> >correctly. Try deleting the work directory and restarting the tomcat. > >Also > >> >check your JSP pages. > >> >Thanks. > >> >RS > >> > > >> > > >> > > >> > > >> > > >> >Caroline Clewlow <[EMAIL PROTECTED]> on 12/21/2001 03:42:24 AM > >> > > >> >Please respond to "Tomcat Users List" <[EMAIL PROTECTED]> > >> > > >> >To: [EMAIL PROTECTED] > >> >cc: > >> > > >> >Subject: HTTP error 503. Please please help ! > >> > > >> >Hi > >> >I have installed Tomcat 4.01 but cannot access any JSP pages. When I try > >I > >> >receive HTTP error 503 saying the jsp service is not available. > >> >I've read one or two queries like this on the mailing list but haven't > >seen > >> >any replies that solve the problem. > >> >Can anyone help me please ? > >> >Thanks > >> >Caroline > >> > > >> > > >> > > >> >-- > >> >To unsubscribe: <mailto:[EMAIL PROTECTED]> > >> >For additional commands: <mailto:[EMAIL PROTECTED]> > >> >Troubles with the list: <mailto:[EMAIL PROTECTED]> > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> >-- > >> >To unsubscribe: <mailto:[EMAIL PROTECTED]> > >> >For additional commands: <mailto:[EMAIL PROTECTED]> > >> >Troubles with the list: <mailto:[EMAIL PROTECTED]> > >> > > >> > > >> -- > >> > >> > >> > >> > >> __________________________________________________________________ > >> Your favorite stores, helpful shopping tools and great gift ideas. > >Experience the convenience of buying online with Shop@Netscape! > >http://shopnow.netscape.com/ > >> > >> Get your own FREE, personal Netscape Mail account today at > >http://webmail.netscape.com/ > >> > >> > >> -- > >> To unsubscribe: <mailto:[EMAIL PROTECTED]> > >> For additional commands: <mailto:[EMAIL PROTECTED]> > >> Troubles with the list: <mailto:[EMAIL PROTECTED]> > >> > >> > > > > > > > >-- > >To unsubscribe: <mailto:[EMAIL PROTECTED]> > >For additional commands: <mailto:[EMAIL PROTECTED]> > >Troubles with the list: <mailto:[EMAIL PROTECTED]> > > > > > > > > > > > -- > To unsubscribe: <mailto:[EMAIL PROTECTED]> > For additional commands: <mailto:[EMAIL PROTECTED]> > Troubles with the list: <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe: <mailto:[EMAIL PROTECTED]> For additional commands: <mailto:[EMAIL PROTECTED]> Troubles with the list: <mailto:[EMAIL PROTECTED]>
