Hi, everybody.
I'm using JDeveloper 12.2.1.3 and I got strange issue.
I got error message when I switched between task flow
java.lang.NullPointerException
at javax.faces.component.UIComponentBase$AttributesMap.put(UIComponentBase.java:2479)
at javax.faces.component.UIComponentBase$AttributesMap.put(UIComponentBase.java:2336)
at com.sun.faces.context.StateContext$StatelessAddRemoveListener.handleAdd(StateContext.java:536)
at com.sun.faces.context.StateContext$AddRemoveListener.processEvent(StateContext.java:347)
at com.sun.faces.context.StateContext$NoopAddRemoveListener.processEvent(StateContext.java:385)
at javax.faces.event.SystemEvent.processListener(SystemEvent.java:108)
at javax.faces.event.ComponentSystemEvent.processListener(ComponentSystemEvent.java:118)
at com.sun.faces.application.ApplicationImpl.processListenersAccountingForAdds(ApplicationImpl.java:2218)
at com.sun.faces.application.ApplicationImpl.invokeViewListenersFor(ApplicationImpl.java:2036)
at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:290)
at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:245)
at javax.faces.component.UIComponentBase.publishAfterViewEvents(UIComponentBase.java:2254)
at javax.faces.component.UIComponentBase.doPostAddProcessing(UIComponentBase.java:1935)
at javax.faces.component.UIComponentBase.setParent(UIComponentBase.java:448)
at org.apache.myfaces.trinidad.component.FacetHashMap.put(FacetHashMap.java:72)
at org.apache.myfaces.trinidad.component.FacetHashMap.put(FacetHashMap.java:31)
at oracle.adfinternal.view.faces.renderkit.rich.PanelCollectionRenderer$FacetInfo.restoreFacetInfo(PanelCollectionRenderer.java:4340)
at oracle.adfinternal.view.faces.renderkit.rich.PanelCollectionRenderer$PanelCollectionHelper._restoreAppDefinedMenuToolbar(PanelCollectionRenderer.java:1100)
at oracle.adfinternal.view.faces.renderkit.rich.PanelCollectionRenderer$PanelCollectionHelper._restoreAppDefinedPanels(PanelCollectionRenderer.java:940)
at oracle.adfinternal.view.faces.renderkit.rich.PanelCollectionRenderer$PanelCollectionHelper._renderStretchedContent(PanelCollectionRenderer.java:835)
at oracle.adfinternal.view.faces.renderkit.rich.PanelCollectionRenderer$PanelCollectionHelper._encodeAll(PanelCollectionRenderer.java:957)
at oracle.adfinternal.view.faces.renderkit.rich.PanelCollectionRenderer$PanelCollectionHelper.access$600(PanelCollectionRenderer.java:639)
at oracle.adfinternal.view.faces.renderkit.rich.PanelCollectionRenderer.encodeAll(PanelCollectionRenderer.java:500)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:660)
at oracle.adf.view.rich.render.RichRenderer.encodeStretchedChild(RichRenderer.java:2443)
at oracle.adfinternal.view.faces.renderkit.rich.PanelSplitterRenderer._renderPane(PanelSplitterRenderer.java:1653)
at oracle.adfinternal.view.faces.renderkit.rich.PanelSplitterRenderer.encodeAll(PanelSplitterRenderer.java:299)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:660)
at oracle.adf.view.rich.render.RichRenderer.encodeStretchedChild(RichRenderer.java:2443)
at oracle.adfinternal.view.faces.renderkit.rich.PanelSplitterRenderer._renderPane(PanelSplitterRenderer.java:1653)
at oracle.adfinternal.view.faces.renderkit.rich.PanelSplitterRenderer.encodeAll(PanelSplitterRenderer.java:315)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:660)
at oracle.adf.view.rich.render.RichRenderer.encodeStretchedChild(RichRenderer.java:2443)
at oracle.adfinternal.view.faces.renderkit.rich.ShowDetailItemRenderer.access$500(ShowDetailItemRenderer.java:40)
at oracle.adfinternal.view.faces.renderkit.rich.ShowDetailItemRenderer$ChildEncoderCallback.processComponent(ShowDetailItemRenderer.java:678)
at oracle.adfinternal.view.faces.renderkit.rich.ShowDetailItemRenderer$ChildEncoderCallback.processComponent(ShowDetailItemRenderer.java:661)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:198)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:330)
at org.apache.myfaces.trinidad.component.UIXComponent.encodeFlattenedChildren(UIXComponent.java:295)
at oracle.adfinternal.view.faces.renderkit.rich.ShowDetailItemRenderer._encodeChildren(ShowDetailItemRenderer.java:598)
at oracle.adfinternal.view.faces.renderkit.rich.ShowDetailItemRenderer.encodeAll(ShowDetailItemRenderer.java:127)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:660)
at oracle.adf.view.rich.render.RichRenderer.encodeStretchedChild(RichRenderer.java:2443)
at oracle.adfinternal.view.faces.renderkit.rich.ShowOneContainerRenderer.access$600(ShowOneContainerRenderer.java:42)
at oracle.adfinternal.view.faces.renderkit.rich.ShowOneContainerRenderer$BodyEncoderCallback.processComponent(ShowOneContainerRenderer.java:471)
at oracle.adfinternal.view.faces.renderkit.rich.ShowOneContainerRenderer$BodyEncoderCallback.processComponent(ShowOneContainerRenderer.java:404)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:198)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:330)
at org.apache.myfaces.trinidad.component.UIXComponent.encodeFlattenedChildren(UIXComponent.java:295)
at oracle.adfinternal.view.faces.renderkit.rich.ShowOneContainerRenderer.encodeShowDetailItems(ShowOneContainerRenderer.java:361)
at oracle.adfinternal.view.faces.renderkit.rich.PanelTabBaseRenderer._renderTabBody(PanelTabBaseRenderer.java:946)
at oracle.adfinternal.view.faces.renderkit.rich.PanelTabBaseRenderer.encodeAll(PanelTabBaseRenderer.java:259)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:660)
at oracle.adf.view.rich.render.RichRenderer.encodeStretchedChild(RichRenderer.java:2443)
at oracle.adfinternal.view.faces.renderkit.rich.RegionRenderer.access$1200(RegionRenderer.java:137)
at oracle.adfinternal.view.faces.renderkit.rich.RegionRenderer$ChildEncoderCallback.processComponent(RegionRenderer.java:2531)
at oracle.adfinternal.view.faces.renderkit.rich.RegionRenderer$ChildEncoderCallback.processComponent(RegionRenderer.java:2516)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:198)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:330)
at org.apache.myfaces.trinidad.component.UIXComponent.encodeFlattenedChildren(UIXComponent.java:295)
at oracle.adfinternal.view.faces.renderkit.rich.RegionRenderer._encodeChildren(RegionRenderer.java:2187)
at oracle.adfinternal.view.faces.renderkit.rich.RegionRenderer.encodeAll(RegionRenderer.java:648)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at oracle.adf.view.rich.component.fragment.UIXRegion.encodeEnd(UIXRegion.java:232)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:660)
at oracle.adf.view.rich.render.RichRenderer.encodeStretchedChild(RichRenderer.java:2443)
at oracle.adfinternal.view.faces.renderkit.rich.PanelSplitterRenderer._renderPane(PanelSplitterRenderer.java:1653)
at oracle.adfinternal.view.faces.renderkit.rich.PanelSplitterRenderer.encodeAll(PanelSplitterRenderer.java:315)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:660)
at oracle.adf.view.rich.render.RichRenderer.encodeStretchedChild(RichRenderer.java:2443)
at oracle.adfinternal.view.faces.renderkit.rich.PanelGridLayoutRenderer.encodeCellComponent(PanelGridLayoutRenderer.java:1224)
at oracle.adfinternal.view.faces.renderkit.rich.grid.CellChildrenEncoderCallback.processComponent(CellChildrenEncoderCallback.java:38)
at oracle.adfinternal.view.faces.renderkit.rich.grid.CellChildrenEncoderCallback.processComponent(CellChildrenEncoderCallback.java:20)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:198)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:330)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:249)
at oracle.adfinternal.view.faces.renderkit.rich.grid.CellEncoderCallback.processComponent(CellEncoderCallback.java:271)
at oracle.adfinternal.view.faces.renderkit.rich.grid.CellEncoderCallback.processComponent(CellEncoderCallback.java:24)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:198)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:330)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:249)
at oracle.adfinternal.view.faces.renderkit.rich.grid.RowEncoderCallback.processComponent(RowEncoderCallback.java:74)
at oracle.adfinternal.view.faces.renderkit.rich.grid.RowEncoderCallback.processComponent(RowEncoderCallback.java:22)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:198)
at org.apache.myfaces.trinidad.component.UIXComponent.processFlattenedChildren(UIXComponent.java:330)
at org.apache.myfaces.trinidad.component.UIXComponent.encodeFlattenedChildren(UIXComponent.java:295)
at oracle.adfinternal.view.faces.renderkit.rich.PanelGridLayoutRenderer._encodeAllOrVisitChildrenForEncodingImpl(PanelGridLayoutRenderer.java:1042)
at oracle.adfinternal.view.faces.renderkit.rich.PanelGridLayoutRenderer.encodeAll(PanelGridLayoutRenderer.java:314)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:660)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:677)
at oracle.adf.view.rich.render.RichRenderer.encodeAllChildrenInContext(RichRenderer.java:3310)
at oracle.adfinternal.view.faces.renderkit.rich.FormRenderer.encodeAll(FormRenderer.java:270)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:660)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeAllChildren(CoreRenderer.java:677)
at oracle.adf.view.rich.render.RichRenderer.encodeAllChildrenInContext(RichRenderer.java:3310)
at oracle.adfinternal.view.faces.renderkit.rich.DocumentRenderer.encodeAll(DocumentRenderer.java:1355)
at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1651)
at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:538)
at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:1231)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at oracle.adfinternal.view.faces.context.PartialViewContextImpl._processRender(PartialViewContextImpl.java:307)
at oracle.adfinternal.view.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:160)
at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)
at oracle.adfinternal.view.faces.component.AdfViewRoot.encodeAll(AdfViewRoot.java:102)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:432)
at org.apache.myfaces.trinidad.view.ViewDeclarationLanguageWrapper.renderView(ViewDeclarationLanguageWrapper.java:101)
at org.apache.myfaces.trinidad.view.ViewDeclarationLanguageWrapper.renderView(ViewDeclarationLanguageWrapper.java:101)
at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.renderView(ViewDeclarationLanguageFactoryImpl.java:338)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:134)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:170)
at oracle.adfinternal.view.faces.lifecycle.ResponseRenderManager.runRenderView(ResponseRenderManager.java:52)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:1264)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeRenderResponse(LifecycleImpl.java:1107)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:348)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:258)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:651)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:286)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:350)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:207)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:105)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:529)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:529)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:354)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:232)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:169)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.security.jps.ee.http.JpsAbsFilter$3.run(JpsAbsFilter.java:172)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:650)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:110)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilterInternal(JpsAbsFilter.java:273)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:147)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:94)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:248)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:32)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3701)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3667)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:326)
at weblogic.security.service.SecurityManager.runAsForUserCode(SecurityManager.java:197)
at weblogic.servlet.provider.WlsSecurityProvider.runAsForUserCode(WlsSecurityProvider.java:203)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:71)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2443)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2291)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2269)
at weblogic.servlet.internal.ServletRequestImpl.runInternal(ServletRequestImpl.java:1703)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1663)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:272)
at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:644)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:415)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:355)
Could anyone help to resolve this issue?