ADF BC/ Faces - Logout exception

Question

Hi,
I a have one project that does not exit the session properly using the method described in the ADF developers guide. This method is in a request scope managed bean which is called from a commandMenuItem.
the exception is thrown on session.invalidate();
    public String logout_action() throws IOException{
         ExternalContext ectx = FacesContext.getCurrentInstance().getExternalContext();
         HttpServletResponse response = (HttpServletResponse)ectx.getResponse();
         HttpSession session = (HttpSession)ectx.getSession(false);
         try {
             session.invalidate();   
         catch (Exception e) {
               System.out.println("Warning: logout encountered and exception");         
        response.sendRedirect("Console.jsp");
        return null;
    }    this is the exception:
06/11/21 10:57:40 [528] Reusing a cached session application module instance
06/11/21 10:57:40 [529] Reusing a cached session application module instance
06/11/21 10:57:41 [530] **** refreshControl() for BindingContainer :rft_ConsolePageDef
06/11/21 10:57:41 [531] Resolving VO:TravelRequestsView1 for iterator binding:TravelRequestsView1Iterator
06/11/21 10:57:41 [532] DCUtil, returning:oracle.adfinternal.view.faces.model.binding.FacesCtrlRangeBinding, for TravelRequestsView1
06/11/21 10:57:41 [533] Resolving VO:PersonsView1 for iterator binding:PersonsView1Iterator
06/11/21 10:57:41 [534] *** DCDataControl.sync() called from :DCBindingContainer.refresh
06/11/21 10:57:41 [535] *** DCDataControl.sync() called from :DCBindingContainer.refresh
06/11/21 10:57:41 [536] valiateToken:Decompressed BC state:BCST:=0TravelRequestsView1Iterator=-D-00010000000431313931,PersonsView1Iterator=-D-,
06/11/21 10:57:41 [537] TravelRequestsView1 notify ROLLBACK ...
06/11/21 10:57:41 [538] Clearing VO cache for TravelRequestsView1
06/11/21 10:57:41 [539] Clear QueryCollection in cache for VO TravelRequestsView1
06/11/21 10:57:41 [540] ApprovalPartiesView1 notify ROLLBACK ...
06/11/21 10:57:41 [541] Clearing VO cache for ApprovalPartiesView1
06/11/21 10:57:41 [542] Clear QueryCollection in cache for VO ApprovalPartiesView1
06/11/21 10:57:41 [543] Clearing VO cache for TravelRequestsView1
06/11/21 10:57:41 [544] Clear QueryCollection in cache for VO TravelRequestsView1
06/11/21 10:57:41 [545] Clearing VO cache for ApprovalPartiesView1
06/11/21 10:57:41 [546] Clear QueryCollection in cache for VO ApprovalPartiesView1
06/11/21 10:57:41 [547] Clearing VO cache for AdvisoriesView1
06/11/21 10:57:41 [548] Clear QueryCollection in cache for VO AdvisoriesView1
06/11/21 10:57:41 [549] Clearing VO cache for TravelRequestLinesView1
06/11/21 10:57:41 [550] Clear QueryCollection in cache for VO TravelRequestLinesView1
06/11/21 10:57:41 [551] Clearing VO cache for ResponsesView1
06/11/21 10:57:41 [552] Clear QueryCollection in cache for VO ResponsesView1
06/11/21 10:57:41 [553] Clearing VO cache for PersonsView1
06/11/21 10:57:41 [554] Clear QueryCollection in cache for VO PersonsView1
06/11/21 10:57:41 [555] Clearing VO cache for AllStaffView1
06/11/21 10:57:41 [556] Clear QueryCollection in cache for VO AllStaffView1
06/11/21 10:57:41 [557] Clearing EO cache for ecu.app.travel.TravelRequests
06/11/21 10:57:41 [558] Resetting AM=SystemService
06/11/21 10:57:41 [559] ViewObject: PersonsView1 close prepared statements...
06/11/21 10:57:41 [560] ViewObject: AllStaffView1 close prepared statements...
06/11/21 10:57:41 [561] Resetting AM=TravelRequestService
06/11/21 10:57:41 [562] ViewObject: TravelRequestsView1 close prepared statements...
06/11/21 10:57:41 [563] ViewObject: ApprovalPartiesView1 close prepared statements...
06/11/21 10:57:41 [564] ViewObject: AdvisoriesView1 close prepared statements...
06/11/21 10:57:41 [565] ViewObject: TravelRequestLinesView1 close prepared statements...
06/11/21 10:57:41 [566] ViewObject: ResponsesView1 close prepared statements...
06/11/21 10:57:41 [567] SessionCookieImpl SSOUSER banstey
06/11/21 10:57:41 [568] SessionCookieImpl SSOSUBSCRIBER null
06/11/21 10:57:41 [569] SessionCookieImpl User Principal oracle.security.jazn.oc4j.JAZNUserAdaptor
06/11/21 10:57:41 [570] Failed to create BindingContainer from reference :rft_ConsolePageDef
06/11/21 10:57:41 [571] java.lang.NullPointerException
     at oracle.adf.share.http.HttpUtil.getAttribute(HttpUtil.java:98)
     at oracle.adf.share.http.HttpSessionScopeAdapter.get(HttpSessionScopeAdapter.java:240)
     at oracle.adf.share.statemanager.StateManagerScopeAdapter.<init>(StateManagerScopeAdapter.java:88)
     at oracle.adf.share.http.HttpStateManagerScopeAdapter.<init>(HttpStateManagerScopeAdapter.java:51)
     at oracle.adf.share.http.ServletADFContext.getStateManager(ServletADFContext.java:254)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.findOrCreateSessionCookie(DataControlFactoryImpl.java:158)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.createSession(DataControlFactoryImpl.java:222)
     at oracle.adf.model.binding.DCDataControlReference.getDataControl(DCDataControlReference.java:76)
     at oracle.adf.model.BindingContext.get(BindingContext.java:457)
     at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:280)
     at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:248)
     at oracle.adf.model.binding.DCUtil.findContextObject(DCUtil.java:383)
     at oracle.adf.model.binding.DCIteratorBinding.<init>(DCIteratorBinding.java:128)
     at oracle.jbo.uicli.binding.JUIteratorBinding.<init>(JUIteratorBinding.java:60)
     at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:87)
     at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:51)
     at oracle.adf.model.binding.DCIteratorBindingDef.createExecutableBinding(DCIteratorBindingDef.java:277)
     at oracle.adf.model.binding.DCBindingContainerDef.createExecutables(DCBindingContainerDef.java:296)
     at oracle.adf.model.binding.DCBindingContainerDef.createBindingContainer(DCBindingContainerDef.java:425)
     at oracle.adf.model.binding.DCBindingContainerReference.createBindingContainer(DCBindingContainerReference.java:54)
     at oracle.adf.model.binding.DCBindingContainerReference.getBindingContainer(DCBindingContainerReference.java:44)
     at oracle.adf.model.BindingContext.get(BindingContext.java:483)
     at oracle.adf.model.binding.DCBindingContainer.release(DCBindingContainer.java:1913)
     at oracle.adf.model.binding.DCDataControl.release(DCDataControl.java:1551)
     at oracle.adf.model.bc4j.DCJboDataControl.release(DCJboDataControl.java:468)
     at oracle.adf.model.binding.DCDataControl.release(DCDataControl.java:1482)
     at oracle.adf.model.BindingContext.release(BindingContext.java:270)
     at oracle.adf.model.servlet.HttpBindingContext.valueUnbound(HttpBindingContext.java:36)
     at com.evermind.server.http.EvermindHttpSession.destroy(EvermindHttpSession.java:454)
     at com.evermind.server.http.EvermindHttpSession.invalidate(EvermindHttpSession.java:396)
     at ecu.app.ui.managed.TravelSession.logout_action(TravelSession.java:21)
     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:585)
     at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:126)
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:72)
     at oracle.adf.view.faces.component.UIXCommand.broadcast(UIXCommand.java:211)
     at oracle.adf.view.faces.component.UIXCollection.broadcast(UIXCollection.java:95)
     at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:269)
     at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:327)
     at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:79)
     at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
     at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:213)
     at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)
     at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._invokeDoFilter(AdfFacesFilterImpl.java:231)
     at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:200)
     at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:122)
     at oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:106)
     at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:15)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:162)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:619)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:368)
     at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:866)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:448)
     at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:216)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:117)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:110)
     at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
     at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239)
     at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34)
     at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
     at java.lang.Thread.run(Thread.java:595)if i look at the OC4J log in debug mode in another project that doesn't have this problem the logout stops after "close prepared statements..." for each of the View Objects. But for this application it seems to try to reload the pageDef after destroying everything... If i redirect to something other than Console.jsp the exception is still thrown on rft_ConsolePageDef
Note, login page is displayed after this and i can re-login ok.
any help would be appreciated.
regards,
Brenden

Answer 1

One small bug was fixed in the 10.1.3.1 version of the SRDemo (both ADFBC and other version)...
The SRLogout.java class now looks like this:
public class SRLogout {
   * Logout by invalidating the session and redirecting to the home page
   * The container will ask user to re-authenticate automatically.
   * @return null
   * @throws IOException
  public String logoutButton_action() throws IOException{
    FacesContext ctx = FacesContext.getCurrentInstance();
    ExternalContext ectx = ctx.getExternalContext();
    HttpServletResponse response = (HttpServletResponse)ectx.getResponse();
    HttpSession session = (HttpSession)ectx.getSession(false);
    session.invalidate();
    response.sendRedirect("SRWelcome.jspx");
    // Tell faces that we're handling the navigation from here and that there
    // is no need for a new context to be created
    ctx.responseComplete();
    return null;
}The one change was the addition of the ctx.responseComplete() call.
Does adding that to your example improve the situation at all?