If you keep a user object in session, just check at the beginning of the Action whether it is still with you. If not, forward to a log on page. I assume that will work for you. If you don't have a user object in session, whether authorized or not, then you can put a simple String iin session saying "live" to test the session.
On 5/23/05, Frank Ratzlow <[EMAIL PROTECTED]> wrote: > Hallo folks, > > I encountered a strange behaviour regarding the population mechanics of my > forms. > > Following situation: I have my app running, the browser stays open with a > html form to be filled. The http-session expires and the user submits the > form to the server. The result is a http 500 error resulting from a NPE > caused while accessing the underlying struts form to populate. > What makes me wonder is the fact that although the session expired the > request is passed through the ActionServlet, a population of the > ActionForm is attempted and of course not be completed since the session > including it's objects are already removed. > > I would like to see a redirect to an error site that I specify in the > web.xml or struts-config.xml in that case. How do I ensure that > unauthenticated users or users with an expired session are redirected to > such a specified site? > > TIA > > Frank > > JBoss 3.2.3 > Tomcat 4.1.29 (integrated) > Struts 1.1 > JDK 1.4.2_06 > Windows XP > > ===========Stacktrace Start========================= > 11:16:00,140 ERROR [Engine] StandardWrapperValve[action]: > Servlet.service() for servlet action threw exception > javax.servlet.ServletException: BeanUtils.populate > at > org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1254) > at > org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:821) > at > org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:254) > at > org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) > at > com.hannoverre.mmf.presentation.general.MMFActionServlet.process(MMFActionServlet.java:126) > at > org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) > 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$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > at > org.jboss.web.tomcat.security.JBossSecurityMgrRealm.invoke(JBossSecurityMgrRealm.java:220) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.jboss.web.tomcat.tc4.statistics.ContainerStatsValve.invoke(ContainerStatsValve.java:76) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2417) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:65) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:577) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(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$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:197) > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:781) > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:549) > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:677) > at java.lang.Thread.run(Thread.java:534) > 11:16:00,140 ERROR [Engine] ----- Root Cause ----- > java.lang.reflect.InvocationTargetException > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:324) > at > org.apache.commons.beanutils.PropertyUtils.getIndexedProperty(PropertyUtils.java:493) > at > org.apache.commons.beanutils.PropertyUtils.getIndexedProperty(PropertyUtils.java:428) > at > org.apache.commons.beanutils.PropertyUtils.getNestedProperty(PropertyUtils.java:770) > at > org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:801) > at > org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:881) > at > org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:808) > at > org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1252) > at > org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:821) > at > org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:254) > at > org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) > at > com.hannoverre.mmf.presentation.general.MMFActionServlet.process(MMFActionServlet.java:126) > at > org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(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$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > at > org.jboss.web.tomcat.security.JBossSecurityMgrRealm.invoke(JBossSecurityMgrRealm.java:220) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.jboss.web.tomcat.tc4.statistics.ContainerStatsValve.invoke(ContainerStatsValve.java:76) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(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.StandardContext.invoke(StandardContext.java:2417) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:65) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:577) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(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:197) > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:781) > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:549) > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:677) > at java.lang.Thread.run(Thread.java:534) > Caused by: java.lang.NullPointerException > at > com.hannoverre.mmf.presentation.general.contract.ContractContentBaseForm.getNotification(ContractContentBaseForm.java:2003) > ... 57 more > > ===========Stacktrace End ========================= > > -- "You can lead a horse to water but you cannot make it float on its back." ~Dakota Jack~ --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
