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Details

Type: Bug
Resolution: Won't Fix
Priority: Medium
Fix Version/s: None
Affects Version/s: 4.1.4
Component/s: Apps - Team Calendar
Labels:

Support reference count:
5
Symptom Severity:
Severity 2 - Major
UIS:
1
Bug Fix Policy:
View Atlassian Server bug fix policy

Description

Summary

Users can publish their calendars in Outlook via WebDAV, which Team Calendars can then subscribe to.

A user can create an event in the shared calendar, and it appears correctly in Team Calendars after the calendar file has been updated on the WebDAV server.
A second user can send invites to the first user, and the invites will appear correctly in Team Calendars if the second user is in the same or similar time zone to the first user (exact timezones to be affected is to be determined)

Steps to Reproduce (Courtesy of Customer)

On the Mac OSX, set the time zone as "London - Unitied Kingdom". Create an outlook account on Outlook Mac 2011 ensure the Calendar "Default time zoene for new events" is set to "(UTC) Greenwich Mean Time: Dublin, Edinburgh,..." We'll call this John's account.
On Windows set the time zone as "(UTC+10:00) Canberra, Melbourne, Sydney)" In Outlook 2010 options -> Calendar the Timezone is also set to "(UTC+10:00) Canberra, Melbourne, Sydney)". We'll call this Leo's account
Add one entry into Leo's Windows Outlook 2010 Calendar and share it on a Webdav server.
Add the calendar to confluence using "Subscribe using URL", the single calendar entry for Leo is visible in the Confluence calendar.
Send a meeting invite from John's Outlook Mac 2011 to the Leo's Windows Outlook. The calendar entry is added to Leo's calendar.
Click on refresh on Leo's calendar within Confluence Team Calendars.

The following stack trace appears on screen:

Error(s) occurred.
Unable to load events of Leo (f18582e0-6382-4f18-948a-1b7d845909b8): java.lang.NullPointerException at 
edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:769) at 
net.fortuna.ical4j.model.TimeZoneRegistryImpl.getTimeZone(TimeZoneRegistryImpl.java:137) at 
com.atlassian.confluence.extra.calendar3.DefaultJodaIcal4jTimeZoneMapper.getIcal4jTimeZone(DefaultJodaIcal4jTimeZoneMapper.java:116) at 
com.atlassian.confluence.extra.calendar3.DefaultCalendarManager.getSubCalendarTimeZone(DefaultCalendarManager.java:423) at 
com.atlassian.confluence.extra.calendar3.DefaultCalendarManager.getEvents(DefaultCalendarManager.java:574) at 
com.atlassian.confluence.extra.calendar3.rest.CalendarResource$9.doInTransaction(CalendarResource.java:685) at 
com.atlassian.confluence.extra.calendar3.rest.CalendarResource$9.doInTransaction(CalendarResource.java:651) at 
com.atlassian.sal.core.transaction.HostContextTransactionTemplate$1.doInTransaction(HostContextTransactionTemplate.java:25) at 
com.atlassian.sal.spring.component.SpringHostContextAccessor$1.doInTransaction(SpringHostContextAccessor.java:88) at 
org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128) at 
com.atlassian.sal.spring.component.SpringHostContextAccessor.doInTransaction(SpringHostContextAccessor.java:82) at 
sun.reflect.GeneratedMethodAccessor87.invoke(Unknown Source) at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at 
java.lang.reflect.Method.invoke(Unknown Source) at 
com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:129) at 
com.sun.proxy.$Proxy207.doInTransaction(Unknown Source) at 
sun.reflect.GeneratedMethodAccessor87.invoke(Unknown Source) at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at 
java.lang.reflect.Method.invoke(Unknown Source) at 
com.atlassian.plugin.osgi.bridge.external.HostComponentFactoryBean$DynamicServiceInvocationHandler.invoke(HostComponentFactoryBean.java:154) at 
com.sun.proxy.$Proxy207.doInTransaction(Unknown Source) at 
com.atlassian.sal.core.transaction.HostContextTransactionTemplate.execute(HostContextTransactionTemplate.java:21) at 
sun.reflect.GeneratedMethodAccessor103.invoke(Unknown Source) at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at 
java.lang.reflect.Method.invoke(Unknown Source) at 
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307) at 
org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:58) at 
org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:62) at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131) at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119) at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at 
org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invokeUnprivileged(ServiceTCCLInterceptor.java:56) at 
org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invoke(ServiceTCCLInterceptor.java:39) at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at 
org.springframework.osgi.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:59) at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131) at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119) at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at 
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at 
com.sun.proxy.$Proxy1587.execute(Unknown Source) at 
com.atlassian.confluence.extra.calendar3.rest.CalendarResource.getEvents(CalendarResource.java:649) at 
sun.reflect.GeneratedMethodAccessor1945.invoke(Unknown Source) at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at 
java.lang.reflect.Method.invoke(Unknown Source) at 
com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper$ResponseOutInvoker$1.invoke(DispatchProviderHelper.java:234) at 
com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper$1.intercept(DispatchProviderHelper.java:100) at 
com.atlassian.plugins.rest.common.interceptor.impl.DefaultMethodInvocation.invoke(DefaultMethodInvocation.java:61) at 
com.atlassian.plugins.rest.common.expand.interceptor.ExpandInterceptor.intercept(ExpandInterceptor.java:38) at 
com.atlassian.plugins.rest.common.interceptor.impl.DefaultMethodInvocation.invoke(DefaultMethodInvocation.java:61) at 
com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper.invokeMethodWithInterceptors(DispatchProviderHelper.java:132) at 
com.atlassian.plugins.rest.common.interceptor.impl.DispatchProviderHelper$ResponseOutInvoker._dispatch(DispatchProviderHelper.java:230) at 
com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at 
com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288) at 
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at 
com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at 
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at 
com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at 
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469) at 
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400) at 
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349) at 
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339) at 
com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416) at 
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537) at 
com.atlassian.plugins.rest.module.RestDelegatingServletFilter$JerseyOsgiServletContainer.doFilter(RestDelegatingServletFilter.java:178) at 
com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:795) at 
com.atlassian.plugins.rest.module.RestDelegatingServletFilter.doFilter(RestDelegatingServletFilter.java:73) 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 
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.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.plugins.rest.module.servlet.RestServletUtilsUpdaterFilter.doFilterInternal(RestServletUtilsUpdaterFilter.java:26) at 
com.atlassian.plugins.rest.module.servlet.RestServletUtilsUpdaterFilter.doFilter(RestServletUtilsUpdaterFilter.java:40) 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.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.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.mywork.client.filter.ServingRequestsFilter.doFilter(ServingRequestsFilter.java:37) 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.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.plugins.cors.CorsFilter.doFilter(CorsFilter.java:65) 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.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.prettyurls.filter.PrettyUrlsDispatcherFilter.doFilter(PrettyUrlsDispatcherFilter.java:60) 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.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.prettyurls.filter.PrettyUrlsSiteMeshFilter.doFilter(PrettyUrlsSiteMeshFilter.java:70) 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.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.prettyurls.filter.PrettyUrlsMatcherFilter.doFilter(PrettyUrlsMatcherFilter.java:56) 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.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129) at 
com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77) at 
com.atlassian.confluence.util.profiling.ProfilingPageFilter.doFilter(ProfilingPageFilter.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.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46) at 
com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.prettyurls.filter.PrettyUrlsCombinedMatchDispatcherFilter.doFilter(PrettyUrlsCombinedMatchDispatcherFilter.java:61) 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.core.filters.ServletContextThreadLocalFilter.doFilter(ServletContextThreadLocalFilter.java:21) 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.util.UserNameHeaderFilter.doFilter(UserNameHeaderFilter.java:26) 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.ConfluenceTimeoutFilter.doFilter(ConfluenceTimeoutFilter.java:63) 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 
com.atlassian.confluence.web.filter.ConfluenceSecurityFilter.doFilter(ConfluenceSecurityFilter.java:27) 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:28) 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:100) at 
com.atlassian.confluence.util.AbstractBootstrapHotSwappingFilter.doFilter(AbstractBootstrapHotSwappingFilter.java:34) 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:61) 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.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.plugins.rest.module.servlet.RestSeraphFilter.doFilter(RestSeraphFilter.java:44) 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.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.prettyurls.filter.PrettyUrlsCombinedMatchDispatcherFilter.doFilter(PrettyUrlsCombinedMatchDispatcherFilter.java:61) 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:42) 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:76) 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.gzipfilter.GzipFilter.doFilterInternal(GzipFilter.java:74) 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.web.filter.ConfluenceTimingFilter.doFilter(ConfluenceTimingFilter.java:75) 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.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66) at 
com.atlassian.prettyurls.filter.PrettyUrlsCombinedMatchDispatcherFilter.doFilter(PrettyUrlsCombinedMatchDispatcherFilter.java:61) 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.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.web.filter.TranslationModeFilter.doFilter(TranslationModeFilter.java:43) 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:53) 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: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.DebugFilter.doFilter(DebugFilter.java:50) 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.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:563) 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:293) at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859) at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602) at 
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at 
java.lang.Thread.run(Unknown Source)

Environment Information

Windows Environment

Windows 7 SP1
Office Outlook 2010 (v14.0)

Mac Environment

Mac OS 10.9 Mavericks
Office Outlook 2011

Server Environment

Windows Server 2003
IIS6 for the WebDAV Server

Timezones that cause the error to appear (when selected in Outlook 2011)

(UTC) Greenwich Mean Time: Dublin, Edinburgh
(UTC) +07:00 Bankkok, Hanoi, Jakarta

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CONFSERVER-58349 Accessing iCAL subscription link generated by TeamCal causes response 500 from the server (java.lang.NullPointerException)

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Null Pointer Exception when loading a Subscribed Calendar