I'm looking to store a list of nodes in a Session Scope. Unfortunately once I store the list and re-access it the node references don't exist any more. Here is a stack trace from the error:
2015-04-09 12:04:15,994 ERROR info.magnolia.jcr.util.PropertyUtil : can't read value 'Programm_Group' of the Node 'node /diogenes/leser/Title/untitled/Die-Apokalypse80133' will return default value javax.jcr.RepositoryException: This session has been closed. See the chained exception for a trace of where the session was closed. at org.apache.jackrabbit.core.session.SessionState.checkAlive(SessionState.java:150) at org.apache.jackrabbit.core.ItemImpl.sanityCheck(ItemImpl.java:101) at org.apache.jackrabbit.core.NodeImpl.hasProperty(NodeImpl.java:2456) at info.magnolia.jcr.wrapper.DelegateNodeWrapper.hasProperty(DelegateNodeWrapper.java:297) at info.magnolia.jcr.wrapper.DelegateNodeWrapper.hasProperty(DelegateNodeWrapper.java:297) at info.magnolia.jcr.wrapper.DelegateNodeWrapper.hasProperty(DelegateNodeWrapper.java:297) at info.magnolia.jcr.util.PropertyUtil.getString(PropertyUtil.java:377) at ch.tmit.dio.model.BookListModel.filterByRequestParamFilters(BookListModel.java:287) at sun.reflect.GeneratedMethodAccessor400.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:866) at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:106) at freemarker.core.MethodCall._getAsTemplateModel(MethodCall.java:93) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.Assignment.accept(Assignment.java:90) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.IfBlock.accept(IfBlock.java:82) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.Environment.process(Environment.java:199) at freemarker.template.Template.process(Template.java:237) at info.magnolia.freemarker.FreemarkerHelper.render(FreemarkerHelper.java:153) at info.magnolia.rendering.renderer.FreemarkerRenderer.onRender(FreemarkerRenderer.java:96) at info.magnolia.rendering.renderer.AbstractRenderer.render(AbstractRenderer.java:151) at info.magnolia.rendering.engine.DefaultRenderingEngine.render(DefaultRenderingEngine.java:106) at info.magnolia.rendering.engine.DefaultRenderingEngine.render(DefaultRenderingEngine.java:91) at info.magnolia.rendering.engine.DefaultRenderingEngine.render(DefaultRenderingEngine.java:86) at info.magnolia.rendering.engine.DefaultRenderingEngine$$EnhancerByCGLIB$$5b62e2c0.render(<generated>) at info.magnolia.templating.elements.ComponentElement.begin(ComponentElement.java:181) at info.magnolia.templating.renderers.NoScriptRenderer.onRender(NoScriptRenderer.java:102) at info.magnolia.templating.renderers.NoScriptRenderer.render(NoScriptRenderer.java:80) at info.magnolia.rendering.engine.DefaultRenderingEngine.render(DefaultRenderingEngine.java:106) at info.magnolia.rendering.engine.DefaultRenderingEngine$$EnhancerByCGLIB$$5b62e2c0.render(<generated>) at info.magnolia.templating.elements.AreaElement.end(AreaElement.java:326) at info.magnolia.templating.freemarker.AbstractDirective.execute(AbstractDirective.java:97) at freemarker.core.Environment.visit(Environment.java:274) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:126) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.Environment.process(Environment.java:199) at freemarker.template.Template.process(Template.java:237) at info.magnolia.freemarker.FreemarkerHelper.render(FreemarkerHelper.java:153) at info.magnolia.rendering.renderer.FreemarkerRenderer.onRender(FreemarkerRenderer.java:96) at info.magnolia.rendering.renderer.AbstractRenderer.render(AbstractRenderer.java:151) at info.magnolia.rendering.engine.DefaultRenderingEngine.render(DefaultRenderingEngine.java:106) at info.magnolia.rendering.engine.DefaultRenderingEngine$$EnhancerByCGLIB$$5b62e2c0.render(<generated>) at info.magnolia.rendering.engine.RenderingFilter.render(RenderingFilter.java:205) at info.magnolia.rendering.engine.RenderingFilter.handleTemplateRequest(RenderingFilter.java:139) at info.magnolia.rendering.engine.RenderingFilter.doFilter(RenderingFilter.java:91) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.rendering.model.ModelExecutionFilter.doFilter(ModelExecutionFilter.java:101) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.AggregatorFilter.doFilter(AggregatorFilter.java:103) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.security.BaseSecurityFilter.doFilter(BaseSecurityFilter.java:57) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.RepositoryMappingFilter.doFilter(RepositoryMappingFilter.java:100) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:65) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:74) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:65) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.VirtualUriFilter.doFilter(VirtualUriFilter.java:68) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.module.cache.executor.Bypass.processCacheRequest(Bypass.java:58) at info.magnolia.module.cache.executor.CompositeExecutor.processCacheRequest(CompositeExecutor.java:66) at info.magnolia.module.cache.filter.CacheFilter.doFilter(CacheFilter.java:153) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.i18n.I18nContentSupportFilter.doFilter(I18nContentSupportFilter.java:73) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.RangeSupportFilter.doFilter(RangeSupportFilter.java:84) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.security.BaseSecurityFilter.doFilter(BaseSecurityFilter.java:57) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.security.SecurityCallbackFilter.doFilter(SecurityCallbackFilter.java:83) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.security.LogoutFilter.doFilter(LogoutFilter.java:93) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.module.templatingkit.filters.SiteMergeFilter.doFilter(SiteMergeFilter.java:112) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MultiChannelFilter.doFilter(MultiChannelFilter.java:82) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.module.cache.filter.GZipFilter.doFilter(GZipFilter.java:73) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.security.auth.login.LoginFilter.doFilter(LoginFilter.java:104) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.CosMultipartRequestFilter.doFilter(CosMultipartRequestFilter.java:89) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.module.devicedetection.filter.DeviceDetectionFilter.doFilter(DeviceDetectionFilter.java:71) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.ContentTypeFilter.doFilter(ContentTypeFilter.java:103) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.ContextFilter.doFilter(ContextFilter.java:129) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:65) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.SafeDestroyMgnlFilterWrapper.doFilter(SafeDestroyMgnlFilterWrapper.java:106) at info.magnolia.cms.filters.MgnlFilterDispatcher.doDispatch(MgnlFilterDispatcher.java:66) at info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:107) at info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:93) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:695) Caused by: java.lang.Exception: Stack trace of where session-admin-5168 was originally closed at org.apache.jackrabbit.core.session.SessionState.close(SessionState.java:275) at org.apache.jackrabbit.core.SessionImpl.logout(SessionImpl.java:943) at org.apache.jackrabbit.core.XASessionImpl.logout(XASessionImpl.java:394) at info.magnolia.jcr.wrapper.DelegateSessionWrapper.logout(DelegateSessionWrapper.java:262) at info.magnolia.repository.mbean.TrackingSessionWrapper.logout(TrackingSessionWrapper.java:57) at info.magnolia.jcr.wrapper.DelegateSessionWrapper.logout(DelegateSessionWrapper.java:262) at info.magnolia.jcr.wrapper.DelegateSessionWrapper.logout(DelegateSessionWrapper.java:262) at info.magnolia.jcr.wrapper.DelegateSessionWrapper.logout(DelegateSessionWrapper.java:262) at info.magnolia.context.AbstractRepositoryStrategy.releaseSession(AbstractRepositoryStrategy.java:98) at info.magnolia.context.AbstractRepositoryStrategy.release(AbstractRepositoryStrategy.java:86) at info.magnolia.context.DefaultRepositoryStrategy.release(DefaultRepositoryStrategy.java:87) at info.magnolia.context.WebContextImpl.releaseJCRSessions(WebContextImpl.java:258) at info.magnolia.context.WebContextImpl.release(WebContextImpl.java:252) at info.magnolia.context.MgnlContext.release(MgnlContext.java:620) at info.magnolia.cms.filters.ContextFilter.doFilter(ContextFilter.java:132) Does anyone have an idea how to do this? 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