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java.lang.NullPointerException: 	at oracle.webcenter.page.internal.view.PageDocumentBean.(PageDocumentBean.java:275)	at sun.reflect.GeneratedConstructorAccessor696.newInstance(Unknown Source)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)	at java.lang.Class.newInstance(Class.java:374)	at com.sun.faces.mgbean.BeanBuilder.newBeanInstance(BeanBuilder.java:188)	at com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:106)	at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:406)	at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:215)	at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:204)	at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:76)	at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:173)	at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:200)	at com.sun.faces.el.ChainAwareVariableResolver.resolveVariable(ChainAwareVariableResolver.java:109)	at oracle.javatools.resourcebundle.BundleVariableResolver.resolveVariable(BundleVariableResolver.java:45)	at com.sun.faces.el.VariableResolverChainWrapper.getValue(VariableResolverChainWrapper.java:114)	at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:173)	at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:200)	at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:86)	at com.sun.el.parser.AstValue.getValue(AstValue.java:127)	at com.sun.el.parser.AstNotEqual.getValue(AstNotEqual.java:54)	at com.sun.el.parser.AstAnd.getValue(AstAnd.java:59)	at com.sun.el.parser.AstAnd.getValue(AstAnd.java:54)	at com.sun.el.parser.AstOr.getValue(AstOr.java:54)	at com.sun.el.parser.AstAnd.getValue(AstAnd.java:59)	at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:206)	at oracle.webcenter.portalframework.sitestructure.SiteStructureUtils.evaluateExpression(SiteStructureUtils.java:475)	at oracle.webcenter.portalframework.sitestructure.SiteStructureResource.getParameters(SiteStructureResource.java:467)	at oracle.webcenter.webcenterapp.internal.view.shell.WCSiteTemplatesManagerImpl._getSiteTemplateForCurrentNavigation(WCSiteTemplatesManagerImpl.java:709)	at oracle.webcenter.webcenterapp.internal.view.shell.WCSiteTemplatesManagerImpl._getSiteTemplateNode(WCSiteTemplatesManagerImpl.java:259)	at oracle.webcenter.webcenterapp.internal.view.shell.WCSiteTemplatesManagerImpl.getCurrentSiteTemplateViewId(WCSiteTemplatesManagerImpl.java:185)	at sun.reflect.GeneratedMethodAccessor1235.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at javax.el.BeanELResolver.getValue(BeanELResolver.java:293)	at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:173)	at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:200)	at oracle.adf.share.el.VariableResolverELContext$1.getValue(VariableResolverELContext.java:53)	at com.sun.el.parser.AstValue.getValue(AstValue.java:138)	at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:206)	at oracle.adf.share.el.OracleExpressionEvaluatorImpl.evaluate(OracleExpressionEvaluatorImpl.java:114)	at oracle.adf.share.el.OracleExpressionEvaluatorImpl.evaluate(OracleExpressionEvaluatorImpl.java:69)	at oracle.adf.model.binding.DCUtil.elEvaluate(DCUtil.java:764)	at oracle.adfinternal.view.faces.model.binding.FacesTemplateContainer.resolveViewId(FacesTemplateContainer.java:114)	at oracle.adfinternal.view.faces.model.binding.FacesTemplateContainer.getViewId(FacesTemplateContainer.java:95)	at oracle.adfinternal.view.faces.model.binding.FacesTemplateContainerDef.createNestedTemplateBinding(FacesTemplateContainerDef.java:100)	at oracle.adfinternal.view.faces.model.binding.FacesTemplateContainerDef.createExecutableBinding(FacesTemplateContainerDef.java:84)	at oracle.adf.model.binding.DCBindingContainerDef.createExecutables(DCBindingContainerDef.java:732)	at oracle.adf.model.binding.DCBindingContainerDef.initializeBindingContainer(DCBindingContainerDef.java:872)	at oracle.adf.model.binding.DCBindingContainerDef.createBindingContainer(DCBindingContainerDef.java:1092)	at oracle.adf.model.binding.DCBindingContainerReference.createBindingContainer(DCBindingContainerReference.java:155)	at oracle.adf.model.binding.DCBindingContainerReference.getBindingContainer(DCBindingContainerReference.java:97)	at oracle.adf.model.BindingContext.get(BindingContext.java:1197)	at oracle.adf.model.BindingContext.findBindingContainer(BindingContext.java:921)	at oracle.adf.model.BindingContext.findBindingContainerByPath(BindingContext.java:1703)	at oracle.webcenter.portalframework.sitestructure.handler.CustomViewHandler.setBindingELVariable(CustomViewHandler.java:226)	at oracle.webcenter.portalframework.sitestructure.handler.CustomViewHandler.createViewRoot(CustomViewHandler.java:927)	at oracle.webcenter.portalframework.sitestructure.handler.CustomViewHandler.createView(CustomViewHandler.java:135)	at oracle.webcenter.webcenterapp.internal.view.navigation.NavigationViewHandler.baseCreateView(NavigationViewHandler.java:172)	at oracle.webcenter.community.internal.view.shell.GroupSpaceShellHandler.navigationBaseSearch(GroupSpaceShellHandler.java:2541)	at oracle.webcenter.community.internal.view.shell.GroupSpaceShellHandler.getNavigationViewId(GroupSpaceShellHandler.java:1107)	at oracle.webcenter.webcenterapp.internal.view.navigation.NavigationViewHandler.createView(NavigationViewHandler.java:131)	at javax.faces.application.ViewHandlerWrapper.createView(ViewHandlerWrapper.java:132)	at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.createView(ViewHandlerImpl.java:123)	at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._restoreView(LifecycleImpl.java:831)	at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:422)	at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:207)	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)	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:301)	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.portlet.client.adapter.adf.ADFPortletFilter.doFilter(ADFPortletFilter.java:32)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.webcenter.framework.events.dispatcher.EventDispatcherFilter.doFilter(EventDispatcherFilter.java:44)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at com.incresearch.portalextension.NavFilter.doFilter(NavFilter.java:371)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.wcps.client.PersonalizationFilter.doFilter(PersonalizationFilter.java:74)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.webcenter.content.integration.servlets.ContentServletFilter.doFilter(ContentServletFilter.java:168)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.webcenter.generalsettings.model.provider.GeneralSettingsProviderFilter.doFilter(GeneralSettingsProviderFilter.java:85)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.webcenter.webcenterapp.internal.view.webapp.WebCenterShellPageRedirectionFilter.doFilter(WebCenterShellPageRedirectionFilter.java:342)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:205)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.webcenter.webcenterapp.internal.view.webapp.WebCenterShellFilter.doFilter(WebCenterShellFilter.java:961)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.adf.view.page.editor.webapp.WebCenterComposerFilter.doFilter(WebCenterComposerFilter.java:117)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.adf.share.http.ServletADFFilter.doFilter(ServletADFFilter.java:71)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:128)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:457)	at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:457)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:282)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)	at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:180)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.webcenter.webcenterapp.internal.view.webapp.WebCenterLocaleWrapperFilter.processFilters(WebCenterLocaleWrapperFilter.java:369)	at oracle.webcenter.webcenterapp.internal.view.webapp.WebCenterLocaleWrapperFilter.doFilter(WebCenterLocaleWrapperFilter.java:265)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.adfinternal.view.faces.caching.filter.AdfFacesCachingFilter.doFilter(AdfFacesCachingFilter.java:137)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)	at java.security.AccessController.doPrivileged(Native Method)	at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:324)	at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)	at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)	at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)	at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.security.wls.filter.SSOSessionSynchronizationFilter.doFilter(SSOSessionSynchronizationFilter.java:418)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:163)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3748)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3714)	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:2283)	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2182)	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1499)	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:263)	at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)