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http://issues.apache.org/bugzilla/show_bug.cgi?id=39470 Summary: Session timeout/stack trace issue in 4.0.30 Product: Tomcat 4 Version: 4.0.3 Final Platform: Other OS/Version: Windows 2000 Status: NEW Severity: major Priority: P2 Component: Jasper AssignedTo: tomcat-dev@jakarta.apache.org ReportedBy: [EMAIL PROTECTED] Our application has a session timeout of one hour. When this is reached and a link is hit an http 500 error is reported with a NullPointerException root cause. However the root cause is not showing an associated stack trace with the component throwing the NPE. I therefore cannot troubleshoot whether this is a development related problem or a tomcat internal session issue. The application in question is supplied by a 3rd party and they currently only support up to Tomcat 4.0.30 (an upgrade to the latest version is therefore not possible). The browser and logs show the same stack trace which I have added below:- 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:254) 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 (ApplicationFilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:256) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe xt(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke (ContainerBase.java:995) at org.apache.catalina.core.StandardContextValve.invoke (StandardContextValve.java:191) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe xt(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:2422) at org.apache.catalina.core.StandardHostValve.invoke (StandardHostValve.java:180) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe xt(StandardPipeline.java:643) at org.apache.catalina.valves.ErrorDispatcherValve.invoke (ErrorDispatcherValve.java:171) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe xt(StandardPipeline.java:641) at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:163) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe xt(StandardPipeline.java:641) at org.apache.catalina.valves.AccessLogValve.invoke (AccessLogValve.java:577) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNe xt(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$StandardPipelineValveContext.invokeNe xt(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke (ContainerBase.java:995) at org.apache.coyote.tomcat4.CoyoteAdapter.service (CoyoteAdapter.java:199) at org.apache.coyote.http11.Http11Processor.process (Http11Processor.java:828) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnecti on(Http11Protocol.java:700) at org.apache.tomcat.util.net.TcpWorkerThread.runIt (PoolTcpEndpoint.java:584) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (ThreadPool.java:683) at java.lang.Thread.run(Thread.java:534) root cause java.lang.NullPointerException Why is there no further detail with the page that threw the NPE? Are there any session related issues in 4.0.30 that could cause this. I cannot really find anything in the current bug list (open or closed) that helps me. Any help would me much appreciated. This is occuring in a major, live application and many users are complaining. Unfortunatly this issue seems to be intermitent and cannot be consistently reproduced. Regards, Paul -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
