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Getting Target Unreachable, 'null' returned null. on click of two button

Meetendra
Meetendra Member Posts: 74 Red Ribbon

<af:button id="backtobacklist" text="#{msg['go.backtoback']}" immediate="true" partialSubmit="true"

            visible="#{!attrs.sheetHandler.isEnrChartItem}" action="#{attrs.sheetHandler.backtoBack_click}">

        <af:setActionListener from="#{attrs.sheetHandler.workItemModel.icao}"

                   to="#{attrs.sheetHandler.alsoServesBO.icao}"/>

      </af:button>


   <af:button id="shtal" text="#{msg['go.alsoServes']}" immediate="true" partialSubmit="true"

            action="#{attrs.sheetHandler.alsoServesBO.manageAlsoServes_click}"

            visible="#{!attrs.sheetHandler.isEnrChartItem}">

        <af:setActionListener from="#{attrs.sheetHandler.workItemModel.icao}"

                   to="#{attrs.sheetHandler.alsoServesBO.icao}"/>

      </af:button>


javax.el.PropertyNotFoundException: Target Unreachable, 'null' returned null

at com.sun.el.parser.AstValue.getTarget(AstValue.java:191)

at com.sun.el.parser.AstValue.setValue(AstValue.java:225)

at com.sun.el.ValueExpressionImpl.setValue(ValueExpressionImpl.java:294)

at javax.faces.component.UIComponent.processEvent(UIComponent.java:2421)

at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl$EventDeliverer.visit(LifecycleImpl.java:1527)

at oracle.adfinternal.view.faces.component.visit.VisitCallbackChain.visit(VisitCallbackChain.java:31)

at com.sun.faces.component.visit.FullVisitContext.invokeVisitCallback(FullVisitContext.java:151)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:613)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:414)

at org.apache.myfaces.trinidad.component.UIXComponent.visitAllChildren(UIXComponent.java:513)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:491)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:783)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:640)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:414)

at org.apache.myfaces.trinidad.component.UIXComponent.visitAllChildren(UIXComponent.java:513)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:491)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:783)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:640)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:414)

at org.apache.myfaces.trinidad.component.UIXComponent.visitAllChildren(UIXComponent.java:513)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:491)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:783)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:640)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:414)

at org.apache.myfaces.trinidad.component.UIXComponent.visitAllChildren(UIXComponent.java:513)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:491)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:783)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:640)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:414)

at org.apache.myfaces.trinidad.component.UIXComponent.visitAllChildren(UIXComponent.java:513)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:491)

at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:783)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:640)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:414)

at javax.faces.component.UIComponent.visitTree(UIComponent.java:1700)

at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:569)

at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeRestoreViewAfterPhaseListenerLogic(LifecycleImpl.java:549)

at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeAfterPhaseLogic(LifecycleImpl.java:483)

at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:398)

at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:237)

at javax.faces.webapp.FacesServlet.service(FacesServlet.java:650)

at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:295)

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:353)

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$1.call(TrinidadFilterImpl.java:591)

at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain$1.call(TrinidadFilterImpl.java:587)

at org.apache.myfaces.trinidad.context.ExternalContextPropagator.processInScope(ExternalContextPropagator.java:216)

at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:596)

at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:91)

at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain$1.call(TrinidadFilterImpl.java:591)

at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain$1.call(TrinidadFilterImpl.java:587)

at org.apache.myfaces.trinidad.context.ExternalContextPropagator.processInScope(ExternalContextPropagator.java:216)

at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:596)

at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$1.call(TrinidadFilterImpl.java:372)

at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$1.call(TrinidadFilterImpl.java:368)

at org.apache.myfaces.trinidad.context.ExternalContextPropagator.processInScope(ExternalContextPropagator.java:216)

at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:383)

at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:241)

at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:101)

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:175)

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:112)

at oracle.security.jps.ee.http.JpsAbsFilter.doFilterInternal(JpsAbsFilter.java:293)

at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:150)

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 oracle.jrf.servlet.ExtensibleGlobalFilter.doFilter(ExtensibleGlobalFilter.java:92)

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:3797)

at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3763)

at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:344)

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:2451)

at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2299)

at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2277)

at weblogic.servlet.internal.ServletRequestImpl.runInternal(ServletRequestImpl.java:1720)

at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1680)

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:655)

at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420)

at weblogic.work.ExecuteThread.run(ExecuteThread.java:360)

Answers