Null pointer exception during rollout from blueprint to live copy

Question

We are getting a null pointer exception during rolling out a page from blueprint to live copy. This is the stack-trace in error.log

21.05.2015 13:03:49.153 *ERROR* [10.62.96.135 [1432209828962] POST /bin/wcmcommand HTTP/1.1] sm.impl.commands.RolloutCommand Error during roll-out. com.day.cq.wcm.api.WCMException: java.Exception
at com.day.cq.wcm.msm.impl.RolloutManagerImpl.rolloutResource(RolloutManagerImpl.java
at com.day.cq.wcm.msm.impl.RolloutManagerImpl.rolloutPage(RolloutManagerImpl.java:671
at com.day.cq.wcm.msm.impl.RolloutManagerImpl.rolloutPageRelations(RolloutManagerImpl
at com.day.cq.wcm.msm.impl.RolloutManagerImpl.rollout(RolloutManagerImpl.java:471)
at com.day.cq.wcm.msm.impl.commands.RolloutCommand.performCommand(RolloutCommand.java
at com.day.cq.wcm.core.impl.commands.WCMCommandServlet$CommandHolder.performCommand(W.java:153)
at com.day.cq.wcm.core.impl.commands.WCMCommandServlet.performCommand(WCMCommandServl
at com.day.cq.commons.servlets.AbstractCommandServlet.doPost(AbstractCommandServlet.j
at org.apache.sling.api.servlets.SlingAllMethodsServlet.mayService(SlingAllMethodsSer
at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServ
at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServ
at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:508)
at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponena:45)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:64)
at com.adobe.acs.commons.wcm.impl.ComponentErrorHandlerImpl.doFilter(ComponentErrorHa85)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:146)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.day.cq.wcm.core.impl.WCMComponentFilter.filterRootInclude(WCMComponentFilter.j
at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:168)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilt
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequejava:254)
at org.apache.sling.engine.impl.filter.RequestSlingFilterChain.render(RequestSlingFil)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:64)
at com.day.cq.wcm.core.impl.AuthoringUIModeServiceImpl.doFilter(AuthoringUIModeServic
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.day.cq.wcm.core.impl.warp.TimeWarpFilter.doFilter(TimeWarpFilter.java:106)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.day.cq.wcm.mobile.core.impl.redirect.RedirectFilter.doFilter(RedirectFilter.ja
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter.doFilter(RequesLogFilter.java:64)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.day.cq.wcm.foundation.forms.impl.FormsHandlingServlet.doFilter(FormsHandlingSe
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.day.cq.theme.impl.ThemeResolverFilter.doFilter(ThemeResolverFilter.java:76)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.adobe.granite.optout.impl.OptOutFilter.doFilter(OptOutFilter.java:74)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.day.cq.wcm.core.impl.WCMRequestFilter.doFilter(WCMRequestFilter.java:90)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.adobe.cq.history.impl.HistoryRequestFilter.doFilter(HistoryRequestFilter.java:
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at com.day.cq.wcm.designimporter.CanvasPageDeleteRequestFilter.doFilter(CanvasPageDel.java:88)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at org.apache.sling.rewriter.impl.RewriterFilter.doFilter(RewriterFilter.java:83)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:127)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at org.apache.sling.bgservlets.impl.BackgroundServletStarterFilter.doFilter(Backgrounilter.java:135)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlina:60)
at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processRequest(SlingRequestva:151)
at org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:206)
at org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler
at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.j
at org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipelin
at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(Invocajava:49)
at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterCh
at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:127)
at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.j
at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.jav
at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(Invocajava:47)
at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterCh
at org.apache.felix.http.sslfilter.internal.SslFilter.doFilter(SslFilter.java:55)
at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.j
at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.jav
at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(Invocajava:47)
at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterCh
at org.apache.sling.security.impl.ReferrerFilter.doFilter(ReferrerFilter.java:263)
at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.j
at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.jav
at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(Invocajava:47)
at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterCh
at com.adobe.granite.license.impl.LicenseCheckFilter.doFilter(LicenseCheckFilter.java
at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.j
at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.jav
at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(Invocajava:47)
at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterCh
at org.apache.sling.engine.impl.log.RequestLoggerFilter.doFilter(RequestLoggerFilter.
at org.apache.felix.http.base.internal.handler.FilterHandler.doHandle(FilterHandler.j
at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.jav
at org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(Invocajava:47)
at org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterCh
at org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipelin
at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:3
at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.ja
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnviron
at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.ja
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.jav
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.jav
at com.day.j2ee.servletengine.ServletHandlerImpl.process(ServletHandlerImpl.java:335)
at com.day.j2ee.servletengine.HttpListener$Worker.run(HttpListener.java:644)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at com.day.cq.wcm.msm.impl.actions.ReferencesUpdateActionFactory$ReferencesUpdateActierencesUpdateActionFactory.java:136)
at com.day.cq.wcm.msm.impl.actions.BaseAction.execute(BaseAction.java:64)
at com.day.cq.wcm.msm.impl.RolloutManagerImpl.rolloutResource(RolloutManagerImpl.java
... 94 more

On all the pages in which this error is present; there is this property on the cq:LiveSyncConfig node

cq:excludedPaths

jcr:mixinTypes Name[] cq:LcPathFilter

Can this property be the reason of the nullpointer exception?

Thanks

Sham_HC · Accepted Answer

Can you verify the spelling at [1]. It should be "References"[1] /libs/wcm/msm/config.author/com.day.cq.wcm.msm.impl.actions.ReferencesUpdateActionFactory

Deepankar · Answer

Hi Sham, Thanks for you reply. I checked the spelling; it is the same as that you mentioned. Also; since this exception is thrown by default CQ5 apis; we can't really change the spelling. I checked the logs I got a 'Unclosed session detected error'

Please find below the logs:--

01.06.2015 08:34:27.537 *WARN* [Finalizer] org.apache.jackrabbit.core.SessionImpl Unclosed session detected. The session was opened here: java.lang.Exception: Stack Trace
at org.apache.jackrabbit.core.SessionImpl.<init>(SessionImpl.java:222)
at org.apache.jackrabbit.core.XASessionImpl.<init>(XASessionImpl.java:117)
at com.day.crx.core.CRXSessionImpl.<init>(CRXSessionImpl.java:69)
at com.day.crx.core.CRXRepositoryImpl.createSessionInstance(CRXRepositoryImpl.java:935)
at org.apache.jackrabbit.core.RepositoryImpl.createSession(RepositoryImpl.java:959)
at org.apache.jackrabbit.core.SessionFactory.createAdminSession(SessionFactory.java:42)
at com.day.crx.sling.server.impl.SlingRepositoryWrapper.loginAdministrative(SlingRepositoryWrapper.java:76)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getResourceProviderInternal(JcrResourceProviderFactory.java:136)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getAdministrativeResourceProvider(JcrResourceProviderFactory.java:115)
at org.apache.sling.resourceresolver.impl.tree.ResourceProviderFactoryHandler.login(ResourceProviderFactoryHandler.java:162)
at org.apache.sling.resourceresolver.impl.tree.RootResourceProviderEntry.loginToRequiredFactories(RootResourceProviderEntry.java:95)
at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getResourceResolverInternal(ResourceResolverFactoryImpl.java:95)
at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getAdministrativeResourceResolver(ResourceResolverFactoryImpl.java:69)
at org.apache.sling.resourceresolver.impl.helper.ResourceResolverContext.getResourceTypeResourceResolver(ResourceResolverContext.java:192)
at org.apache.sling.resourceresolver.impl.helper.ResourceResolverContext.getParentResourceType(ResourceResolverContext.java:216)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.getParentResourceType(ResourceResolverImpl.java:1136)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.getParentResourceType(ResourceResolverImpl.java:1126)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.isResourceType(ResourceResolverImpl.java:1151)
at org.apache.sling.api.resource.ResourceUtil.isA(ResourceUtil.java:466)
at com.adobe.cq.social.storage.index.AbstractBaseIndexHandler.checkResourceType(AbstractBaseIndexHandler.java:111)
at com.adobe.cq.social.storage.index.AbstractBaseIndexHandler.handleEvent(AbstractBaseIndexHandler.java:159)
at com.adobe.cq.social.forum.impl.ForumIndexHandler.handleEvent(ForumIndexHandler.java:534)
at com.adobe.cq.social.storage.index.impl.IndexService.handleEvent(IndexService.java:100)
at org.apache.felix.eventadmin.impl.handler.EventHandlerProxy.sendEvent(EventHandlerProxy.java:412)
at org.apache.felix.eventadmin.impl.tasks.SyncDeliverTasks.execute(SyncDeliverTasks.java:118)
at org.apache.felix.eventadmin.impl.handler.EventAdminImpl.sendEvent(EventAdminImpl.java:114)
at org.apache.felix.eventadmin.impl.security.EventAdminSecurityDecorator.sendEvent(EventAdminSecurityDecorator.java:96)
at org.apache.sling.jcr.resource.internal.JcrResourceListener.processOsgiEventQueue(JcrResourceListener.java:409)
at org.apache.sling.jcr.resource.internal.JcrResourceListener$1.run(JcrResourceListener.java:130)
at java.lang.Thread.run(Thread.java:744)
01.06.2015 08:34:27.538 *WARN* [Finalizer] org.apache.jackrabbit.core.SessionImpl Unclosed session detected. The session was opened here: java.lang.Exception: Stack Trace
at org.apache.jackrabbit.core.SessionImpl.<init>(SessionImpl.java:222)
at org.apache.jackrabbit.core.XASessionImpl.<init>(XASessionImpl.java:117)
at com.day.crx.core.CRXSessionImpl.<init>(CRXSessionImpl.java:69)
at com.day.crx.core.CRXRepositoryImpl.createSessionInstance(CRXRepositoryImpl.java:935)
at org.apache.jackrabbit.core.RepositoryImpl.createSession(RepositoryImpl.java:959)
at org.apache.jackrabbit.core.SessionFactory.createAdminSession(SessionFactory.java:42)
at com.day.crx.sling.server.impl.SlingRepositoryWrapper.loginAdministrative(SlingRepositoryWrapper.java:76)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getResourceProviderInternal(JcrResourceProviderFactory.java:136)
at org.apache.sling.jcr.resource.internal.helper.jcr.JcrResourceProviderFactory.getAdministrativeResourceProvider(JcrResourceProviderFactory.java:115)
at org.apache.sling.resourceresolver.impl.tree.ResourceProviderFactoryHandler.login(ResourceProviderFactoryHandler.java:162)
at org.apache.sling.resourceresolver.impl.tree.RootResourceProviderEntry.loginToRequiredFactories(RootResourceProviderEntry.java:95)
at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getResourceResolverInternal(ResourceResolverFactoryImpl.java:95)
at org.apache.sling.resourceresolver.impl.ResourceResolverFactoryImpl.getAdministrativeResourceResolver(ResourceResolverFactoryImpl.java:69)
at org.apache.sling.resourceresolver.impl.helper.ResourceResolverContext.getResourceTypeResourceResolver(ResourceResolverContext.java:192)
at org.apache.sling.resourceresolver.impl.helper.ResourceResolverContext.getParentResourceType(ResourceResolverContext.java:216)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.getParentResourceType(ResourceResolverImpl.java:1136)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.getParentResourceType(ResourceResolverImpl.java:1126)
at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.isResourceType(ResourceResolverImpl.java:1151)
at org.apache.sling.api.resource.ResourceUtil.isA(ResourceUtil.java:466)
at com.adobe.cq.social.storage.index.AbstractBaseIndexHandler.checkResourceType(AbstractBaseIndexHandler.java:111)
at com.adobe.cq.social.storage.index.AbstractBaseIndexHandler.handleEvent(AbstractBaseIndexHandler.java:159)
at com.adobe.cq.social.forum.impl.ForumIndexHandler.handleEvent(ForumIndexHandler.java:534)
at com.adobe.cq.social.storage.index.impl.IndexService.handleEvent(IndexService.java:100)
at org.apache.felix.eventadmin.impl.handler.EventHandlerProxy.sendEvent(EventHandlerProxy.java:412)
at org.apache.felix.eventadmin.impl.tasks.SyncDeliverTasks.execute(SyncDeliverTasks.java:118)
at org.apache.felix.eventadmin.impl.handler.EventAdminImpl.sendEvent(EventAdminImpl.java:114)
at org.apache.felix.eventadmin.impl.security.EventAdminSecurityDecorator.sendEvent(EventAdminSecurityDecorator.java:96)
at org.apache.sling.jcr.resource.internal.JcrResourceListener.processOsgiEventQueue(JcrResourceListener.java:409)
at org.apache.sling.jcr.resource.internal.JcrResourceListener$1.run(JcrResourceListener.java:130)
at java.lang.Thread.run(Thread.java:744)

I am creating an admin session by adapting the resourceresolver and closing the session as well. Still getting this issue. Can the nullpointer exception in the rollout be due to the unclosed session?

Thanks.

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