Hi It looks like you are using an old version of MyFaces. Try with the newest ones (2.1.7, 2.0.13) first and if the problem persists please resend the new stack trace to check it again.
regards, Leonardo Uribe 2012/4/26 jnthodge <jntho...@hotmail.com>: > > Hi, I'm using MyFaces + Facelets + Trinidad + WebLogic 10.3.5. > > When trying to use the back button to backtrack to previous pages, it seems > the pages themselves are in the browser chache and do display alright. Yet, > when I try to use any Trinidad link or command button, I get a > NullPointerException. This is happing on every page on the site. Yet, if I > hit the back button, then, refresh the resulting cached page, then the > forward navigation items work just fine. What is going wrong here: > > java.lang.NullPointerException > at > org.apache.myfaces.application.ApplicationImpl._traverseListenerList(ApplicationImpl.java:2344) > at > org.apache.myfaces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:563) > at > org.apache.myfaces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:593) > at > org.apache.myfaces.application.NavigationHandlerImpl$PreDisposeViewCallback.visit(NavigationHandlerImpl.java:236) > at > org.apache.myfaces.component.visit.FullVisitContext.invokeVisitCallback(FullVisitContext.java:141) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:505) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:354) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitAllChildren(UIXComponent.java:411) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:392) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:669) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:532) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:354) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitAllChildren(UIXComponent.java:411) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:392) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:669) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:532) > at > org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:354) > at > org.apache.myfaces.trinidad.component.UIXDocument.visitTree(UIXDocument.java:82) > at javax.faces.component.UIComponent.visitTree(UIComponent.java:958) > at > javax.faces.component.UIComponentBase.visitTree(UIComponentBase.java:1073) > at > org.apache.myfaces.application.NavigationHandlerImpl.handleNavigation(NavigationHandlerImpl.java:181) > at > org.apache.myfaces.trinidadinternal.application.NavigationHandlerImpl.handleNavigation(NavigationHandlerImpl.java:117) > at > org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:161) > at > org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:190) > at javax.faces.component.UIViewRoot._broadcastAll(UIViewRoot.java:1015) > at > javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:284) > at javax.faces.component.UIViewRoot._process(UIViewRoot.java:1309) > at > javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:746) > at > org.apache.myfaces.lifecycle.InvokeApplicationExecutor.execute(InvokeApplicationExecutor.java:38) > at > org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:170) > at > org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117) > at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197) > at > weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) > at > weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) > at > weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300) > at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26) > at > weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) > at > org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293) > at > org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199) > at > org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92) > at > weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) > at com.myapp.filter.LoginFilter.doFilter(LoginFilter.java:59) > at > weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) > at > oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111) > at java.security.AccessController.doPrivileged(Native Method) > at > oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313) > at > oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413) > at > oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94) > at > oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161) > at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71) > at > weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) > at > oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136) > at > weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) > at > weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27) > at > weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) > at > weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715) > at > weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681) > at > weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) > at > weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120) > at > weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277) > at > weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183) > at > weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454) > at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209) > at weblogic.work.ExecuteThread.run(ExecuteThread.java:178) > -- > View this message in context: > http://old.nabble.com/Facelets%3A-Back-button%2C-then-nav-link-click-produces-NPE-tp33755243p33755243.html > Sent from the My Faces - Dev mailing list archive at Nabble.com. >
