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  1. Confluence Data Center
  2. CONFSERVER-50779

"java.lang.UnsupportedOperationException: Unable to find a delegate to handle the operation" trying to import a Calendar with Team Calendars 1.5.1 on Confluence 3.5.13

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    Description

      NOTE: This bug report is for Confluence Server. Using Confluence Cloud? See the corresponding bug report.

      We were attempting to run a trial migration today with the newly released 1.5.1 version of the plugin when we ran into the following.
      Any attempt to import an iCal would result in nothing happening in the UI, and an error being thrown in the logs:

      2011-10-21 07:40:43,898 ERROR [http-8080-4] [atlassian.confluence.servlet.ConfluenceServletDispatcher] sendError Could not execute action
       -- url: /plugins/calendar/importsubcalendar.action | userName: xxx | referer: https://xxx.com/calendar/mycalendar.action
      java.lang.UnsupportedOperationException: Unable to find a delegate to handle the operation
              at com.atlassian.confluence.extra.calendar3.calendarstore.DelegatingCalendarDataStore.save(DelegatingCalendarDataStore.java:84)
              at com.atlassian.confluence.extra.calendar3.DefaultCalendarManager.save(DefaultCalendarManager.java:187)
              at com.atlassian.confluence.extra.calendar3.xwork.ImportSubCalendarAction.execute(ImportSubCalendarAction.java:264)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:168)
              at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.opensymphony.xwork.interceptor.DefaultWorkflowInterceptor.intercept(DefaultWorkflowInterceptor.java:55)
              at com.atlassian.confluence.core.ConfluenceWorkflowInterceptor.intercept(ConfluenceWorkflowInterceptor.java:35)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.xwork.interceptors.XsrfTokenInterceptor.intercept(XsrfTokenInterceptor.java:100)
              at com.atlassian.confluence.xwork.ConfluenceXsrfTokenInterceptor.intercept(ConfluenceXsrfTokenInterceptor.java:25)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.security.interceptors.CaptchaInterceptor.intercept(CaptchaInterceptor.java:46)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.util.LoggingContextInterceptor.intercept(LoggingContextInterceptor.java:49)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.core.CancellingInterceptor.intercept(CancellingInterceptor.java:23)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.security.websudo.WebSudoInterceptor.intercept(WebSudoInterceptor.java:58)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.security.actions.PermissionCheckInterceptor.intercept(PermissionCheckInterceptor.java:57)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.setup.webwork.BootstrapAwareInterceptor.intercept(BootstrapAwareInterceptor.java:26)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.user.actions.UserAwareInterceptor.intercept(UserAwareInterceptor.java:58)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.pages.actions.CommentAwareInterceptor.intercept(CommentAwareInterceptor.java:43)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.pages.actions.PageAwareInterceptor.intercept(PageAwareInterceptor.java:106)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.spaces.actions.SpaceAwareInterceptor.intercept(SpaceAwareInterceptor.java:68)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.core.actions.LastModifiedInterceptor.intercept(LastModifiedInterceptor.java:38)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.core.ConfluenceAutowireInterceptor.intercept(ConfluenceAutowireInterceptor.java:38)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.xwork.interceptors.TransactionalInvocation.invokeAndHandleExceptions(TransactionalInvocation.java:76)
              at com.atlassian.xwork.interceptors.TransactionalInvocation.invokeInTransaction(TransactionalInvocation.java:61)
              at com.atlassian.xwork.interceptors.XWorkTransactionInterceptor.intercept(XWorkTransactionInterceptor.java:56)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.atlassian.confluence.xwork.SetupIncompleteInterceptor.intercept(SetupIncompleteInterceptor.java:40)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
              at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
              at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:115)
              at com.atlassian.confluence.servlet.ConfluenceServletDispatcher.serviceAction(ConfluenceServletDispatcher.java:53)
              at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:199)
              at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
              at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66)
              at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:25)
              at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:74)
              at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:42)
              at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:77)
              at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.security.websudo.MessagesDecoratorFilter.doFilter(MessagesDecoratorFilter.java:49)
              at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
              at com.atlassian.confluence.util.profiling.ProfilingPageFilter.parsePage(ProfilingPageFilter.java:84)
              at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:54)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
              at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:77)
              at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.jmx.JmxFilter.doFilter(JmxFilter.java:106)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.core.filters.ServletContextThreadLocalFilter.doFilter(ServletContextThreadLocalFilter.java:19)
              at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.util.LoggingContextFilter.doFilter(LoggingContextFilter.java:40)
              at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.web.filter.ThreadLocalCacheFilter.doFilter(ThreadLocalCacheFilter.java:22)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.util.UserThreadLocalFilter.doFilter(UserThreadLocalFilter.java:44)
              at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:211)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:98)
              at com.atlassian.confluence.util.AbstractBootstrapHotSwappingFilter.doFilter(AbstractBootstrapHotSwappingFilter.java:30)
              at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.seraph.filter.BaseLoginFilter.doFilter(BaseLoginFilter.java:150)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
              at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66)
              at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:71)
              at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:74)
              at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:42)
              at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:77)
              at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.util.ClusterHeaderFilter.doFilter(ClusterHeaderFilter.java:34)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.johnson.filters.AbstractJohnsonFilter.doFilter(AbstractJohnsonFilter.java:72)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:170)
              at com.atlassian.spring.filter.FlushingSpringSessionInViewFilter.doFilterInternal(FlushingSpringSessionInViewFilter.java:29)
              at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.util.ConfluenceErrorFilter.doFilter(ConfluenceErrorFilter.java:22)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:99)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.core.datetime.RequestTimeThreadLocalFilter.doFilter(RequestTimeThreadLocalFilter.java:35)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.gzipfilter.GzipFilter.doFilterInternal(GzipFilter.java:80)
              at com.atlassian.gzipfilter.GzipFilter.doFilter(GzipFilter.java:51)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.core.filters.cache.AbstractCachingFilter.doFilter(AbstractCachingFilter.java:33)
              at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
              at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66)
              at com.atlassian.confluence.extra.webdav.servlet.filter.ReverseProxyFilter.doFilter(ReverseProxyFilter.java:427)
              at com.atlassian.confluence.extra.webdav.servlet.filter.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34)
              at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:74)
              at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:42)
              at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:77)
              at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.web.filter.validateparam.RequestParamValidationFilter.doFilter(RequestParamValidationFilter.java:58)
              at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.plugin.servlet.filter.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:71)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.web.filter.LanguageExtractionFilter.doFilter(LanguageExtractionFilter.java:52)
              at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.util.RequestCacheThreadLocalFilter.doFilter(RequestCacheThreadLocalFilter.java:25)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.core.filters.encoding.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:41)
              at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.core.filters.HeaderSanitisingFilter.doFilter(HeaderSanitisingFilter.java:44)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at com.atlassian.confluence.servlet.FourOhFourErrorLoggingFilter.doFilter(FourOhFourErrorLoggingFilter.java:65)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
              at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
              at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
              at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
              at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
              at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
              at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
              at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
              at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
              at java.lang.Thread.run(Thread.java:662)
      2011-10-21 07:40:43,903 INFO [http-8080-4] [atlassian.confluence.status.SystemErrorInformationLogger] writeToLog
      Request Unique ID : e52264c7-bf9c-4999-a0c1-ba7de8050100
      --------------------------
      JVM Stats
      --------------------------
      allocatedHeap = 2738683904
      availablePermGen = 365176488
      usedMemory = 1715549136
      totalMemory = 2738683904
      freeMemory = 1023134768
      maxPermGen = 536870912
      usedPermGen = 171694424
      freeMemoryInMegabytes = 975
      freeAllocatedHeap = 1023134768
      availableHeap = 2102250544
      usedMemoryInMegabytes = 1636
      maxHeap = 3817799680
      usedHeap = 1715549136
      totalMemoryInMegabytes = 2611
      --------------------------
      Request Information
      --------------------------
      URL: http://xxx.com/500page.jsp
      Scheme: http
      Server: xxx.com
      Port: 80
      URI: /500page.jsp
      Context Path:
      Servlet Path: /500page.jsp
      Path Info: null
      Query String: null
      --------------------------
      Attributes
      --------------------------
      javax.servlet.forward.request_uri: /plugins/calendar/importsubcalendar.action
      javax.servlet.forward.context_path:
      javax.servlet.forward.servlet_path: /plugins/calendar/importsubcalendar.action
      javax.servlet.forward.path_info: /500page.jsp
      os_securityfilter_already_filtered: true
      javax.servlet.jsp.jspException: java.lang.UnsupportedOperationException: Unable to find a delegate to handle the operation
      com.atlassian.seraph.auth.LoginReason: OK
      com.atlassian.confluence.security.websudo.MessagesDecoratorFilter__already_filtered__: true
      atlassian.core.seraph.original.url: /plugins/calendar/importsubcalendar.action
      javax.servlet.error.status_code: 500
      javax.servlet.error.servlet_name: action
      __sitemesh__using_stream: false
      com.atlassian.gzipfilter.GzipFilter_already_filtered: true
      loginfilter.already.filtered: true
      com.atlassian.confluence.web.ConfluenceJohnsonFilter_already_filtered: true
      Confluence-Request-Time: 1319208042389
      javax.servlet.error.message:
      com.atlassian.core.filters.HeaderSanitisingFilter_already_filtered: true
      confluence.messages: {websudo-message=com.atlassian.confluence.security.websudo.WebSudoMessage@4d710944}
      __cleanup_recursion_counter: 0
      webwork.valueStack: com.opensymphony.xwork.util.OgnlValueStack@38177714
      com.atlassian.confluence.web.filter.validateparam.RequestParamValidationFilter_already_filtered: true
      sessioninview.FILTERED: true
      __sitemesh__filterapplied: true
      javax.servlet.error.exception: java.lang.UnsupportedOperationException: Unable to find a delegate to handle the operation
      javax.servlet.error.request_uri: /plugins/calendar/importsubcalendar.action
      --------------------------
      Parameters
      --------------------------
      caused by: java.lang.UnsupportedOperationException: Unable to find a delegate to handle the operation
      at com.atlassian.confluence.extra.calendar3.calendarstore.DelegatingCalendarDataStore.save(DelegatingCalendarDataStore.java:84)
      

      We didn't see this issue with a previous migration using Team Calendars 1.3

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              dchui DavidA
              b0d88db9bee7 David Corley
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                Updated:
                Resolved: