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  1. Magnolia UI
  2. MGNLUI-3209

Exception when multiple users modify the same node almost simultaneously

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Details

    • Bug
    • Resolution: Known Error
    • Neutral
    • None
    • None
    • content app
    • None

    Description

      When editing content we use an optimistic locking approach - nothing prevents a user from e.g. editing the title of a certain page when another users is currently doing the same thing.

      In the context of load tests we can easily produce the problem using multiple tests sessions that modify the same node (with our current PageEditor-test 5-10 out of 50 users get that exception).

      In an real environment this is very unlikely to produce an exception because normally editors don't edit the very same content within the same second. Still we might want to do something about it e.g. like catching the StaleItemException and displaying a message to the user.

      Stacktrace:

      2014-10-17 08:35:01,811 ERROR ia.jcr.wrapper.MgnlPropertySettingContentDecorator: Failed to update LUD for session: session-2795::website
      javax.jcr.InvalidItemStateException: Unable to update a stale item: item.save()
      	at org.apache.jackrabbit.core.ItemSaveOperation.perform(ItemSaveOperation.java:262)
      	at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216)
      	at org.apache.jackrabbit.core.ItemImpl.perform(ItemImpl.java:91)
      	at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:329)
      	at org.apache.jackrabbit.core.session.SessionSaveOperation.perform(SessionSaveOperation.java:65)
      	at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216)
      	at org.apache.jackrabbit.core.SessionImpl.perform(SessionImpl.java:361)
      	at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:812)
      	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297)
      	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297)
      	at info.magnolia.jcr.wrapper.MgnlPropertySettingContentDecorator$MgnlPropertySettingSessionWrapper.save(MgnlPropertySettingContentDecorator.java:464)
      	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297)
      	at info.magnolia.audit.MgnlAuditLoggingContentDecoratorSessionWrapper.save(MgnlAuditLoggingContentDecoratorSessionWrapper.java:82)
      	at info.magnolia.ui.admincentral.dialog.action.SaveDialogAction.execute(SaveDialogAction.java:85)
      	at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:62)
      	at info.magnolia.ui.dialog.BaseDialogPresenter.executeAction(BaseDialogPresenter.java:198)
      	at info.magnolia.ui.dialog.BaseDialogPresenter.onActionFired(BaseDialogPresenter.java:189)
      	at info.magnolia.ui.dialog.actionarea.renderer.DefaultEditorActionRenderer$DefaultActionView$1.buttonClick(DefaultEditorActionRenderer.java:66)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:606)
      	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508)
      	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:167)
      	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:969)
      	at com.vaadin.ui.Button.fireClick(Button.java:368)
      	at com.vaadin.ui.Button$1.click(Button.java:57)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:606)
      	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:168)
      	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:118)
      	at com.vaadin.server.communication.ServerRpcHandler.handleBurst(ServerRpcHandler.java:214)
      	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:111)
      	at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:91)
      	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:37)
      	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1371)
      	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:238)
      	at info.magnolia.ui.admincentral.AdmincentralVaadinServlet.service(AdmincentralVaadinServlet.java:138)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
      	at info.magnolia.cms.filters.ServletDispatchingFilter.doFilter(ServletDispatchingFilter.java:148)
      	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:89)
      	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.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:89)
      	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:89)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82)
      	at info.magnolia.cms.i18n.I18nContentSupportFilter.doFilter(I18nContentSupportFilter.java:73)
      	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:89)
      	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:89)
      	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:89)
      	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.SecurityCallbackFilter.doFilter(SecurityCallbackFilter.java:83)
      	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:60)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80)
      	at info.magnolia.cms.security.LogoutFilter.doFilter(LogoutFilter.java:94)
      	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:60)
      	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:89)
      	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:60)
      	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.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:89)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80)
      	at info.magnolia.cms.filters.UnicodeNormalizationFilter.doFilter(UnicodeNormalizationFilter.java:87)
      	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:89)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82)
      	at info.magnolia.module.devicedetection.filter.DeviceDetectionFilter.doFilter(DeviceDetectionFilter.java:71)
      	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:60)
      	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:89)
      	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:89)
      	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:89)
      	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:243)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
      	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
      	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
      	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
      	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
      	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
      	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
      	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
      	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
      	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
      	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1721)
      	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1679)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:745)
      Caused by: org.apache.jackrabbit.core.state.StaleItemStateException: 89b9bf91-25a6-48c1-af2a-1e04db3827e1/{}imageLocation has been modified externally
      	at org.apache.jackrabbit.core.state.SharedItemStateManager$Update.begin(SharedItemStateManager.java:679)
      	at org.apache.jackrabbit.core.state.SharedItemStateManager.beginUpdate(SharedItemStateManager.java:1507)
      	at org.apache.jackrabbit.core.state.SharedItemStateManager.update(SharedItemStateManager.java:1537)
      	at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:400)
      	at org.apache.jackrabbit.core.state.XAItemStateManager.update(XAItemStateManager.java:354)
      	at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:375)
      	at org.apache.jackrabbit.core.state.SessionItemStateManager.update(SessionItemStateManager.java:275)
      	at org.apache.jackrabbit.core.ItemSaveOperation.perform(ItemSaveOperation.java:258)
      	... 118 more
      2014-10-17 08:35:01,832 ERROR nolia.ui.dialog.formdialog.FormDialogPresenterImpl: An error occurred while executing an action.
      info.magnolia.ui.api.action.ActionExecutionException: javax.jcr.InvalidItemStateException: Unable to update a stale item: item.save()
      	at info.magnolia.ui.admincentral.dialog.action.SaveDialogAction.execute(SaveDialogAction.java:87)
      	at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:62)
      	at info.magnolia.ui.dialog.BaseDialogPresenter.executeAction(BaseDialogPresenter.java:198)
      	at info.magnolia.ui.dialog.BaseDialogPresenter.onActionFired(BaseDialogPresenter.java:189)
      	at info.magnolia.ui.dialog.actionarea.renderer.DefaultEditorActionRenderer$DefaultActionView$1.buttonClick(DefaultEditorActionRenderer.java:66)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:606)
      	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508)
      	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:167)
      	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:969)
      	at com.vaadin.ui.Button.fireClick(Button.java:368)
      	at com.vaadin.ui.Button$1.click(Button.java:57)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:606)
      	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:168)
      	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:118)
      	at com.vaadin.server.communication.ServerRpcHandler.handleBurst(ServerRpcHandler.java:214)
      	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:111)
      	at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:91)
      	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:37)
      	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1371)
      	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:238)
      	at info.magnolia.ui.admincentral.AdmincentralVaadinServlet.service(AdmincentralVaadinServlet.java:138)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
      	at info.magnolia.cms.filters.ServletDispatchingFilter.doFilter(ServletDispatchingFilter.java:148)
      	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:89)
      	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.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:89)
      	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:89)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82)
      	at info.magnolia.cms.i18n.I18nContentSupportFilter.doFilter(I18nContentSupportFilter.java:73)
      	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:89)
      	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:89)
      	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:89)
      	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.SecurityCallbackFilter.doFilter(SecurityCallbackFilter.java:83)
      	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:60)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80)
      	at info.magnolia.cms.security.LogoutFilter.doFilter(LogoutFilter.java:94)
      	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:60)
      	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:89)
      	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:60)
      	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.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:89)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80)
      	at info.magnolia.cms.filters.UnicodeNormalizationFilter.doFilter(UnicodeNormalizationFilter.java:87)
      	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:89)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80)
      	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82)
      	at info.magnolia.module.devicedetection.filter.DeviceDetectionFilter.doFilter(DeviceDetectionFilter.java:71)
      	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:60)
      	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:89)
      	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:89)
      	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:89)
      	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:243)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
      	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
      	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
      	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
      	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
      	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
      	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
      	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
      	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
      	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
      	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1721)
      	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1679)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:745)
      Caused by: javax.jcr.InvalidItemStateException: Unable to update a stale item: item.save()
      	at org.apache.jackrabbit.core.ItemSaveOperation.perform(ItemSaveOperation.java:262)
      	at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216)
      	at org.apache.jackrabbit.core.ItemImpl.perform(ItemImpl.java:91)
      	at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:329)
      	at org.apache.jackrabbit.core.session.SessionSaveOperation.perform(SessionSaveOperation.java:65)
      	at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216)
      	at org.apache.jackrabbit.core.SessionImpl.perform(SessionImpl.java:361)
      	at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:812)
      	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297)
      	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297)
      	at info.magnolia.jcr.wrapper.MgnlPropertySettingContentDecorator$MgnlPropertySettingSessionWrapper.save(MgnlPropertySettingContentDecorator.java:464)
      	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297)
      	at info.magnolia.audit.MgnlAuditLoggingContentDecoratorSessionWrapper.save(MgnlAuditLoggingContentDecoratorSessionWrapper.java:82)
      	at info.magnolia.ui.admincentral.dialog.action.SaveDialogAction.execute(SaveDialogAction.java:85)
      	... 105 more
      Caused by: org.apache.jackrabbit.core.state.StaleItemStateException: 89b9bf91-25a6-48c1-af2a-1e04db3827e1/{}imageLocation has been modified externally
      	at org.apache.jackrabbit.core.state.SharedItemStateManager$Update.begin(SharedItemStateManager.java:679)
      	at org.apache.jackrabbit.core.state.SharedItemStateManager.beginUpdate(SharedItemStateManager.java:1507)
      	at org.apache.jackrabbit.core.state.SharedItemStateManager.update(SharedItemStateManager.java:1537)
      	at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:400)
      	at org.apache.jackrabbit.core.state.XAItemStateManager.update(XAItemStateManager.java:354)
      	at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:375)
      	at org.apache.jackrabbit.core.state.SessionItemStateManager.update(SessionItemStateManager.java:275)
      	at org.apache.jackrabbit.core.ItemSaveOperation.perform(ItemSaveOperation.java:258)
      	... 118 more
      
      

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                dlipp Daniel Lipp
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