2011-08-17 16:13:48,405 scheduler_Worker-3 ERROR [atlassian.crowd.directory.DbCachingDirectoryPoller] Error occurred while refreshing the cache for directory [ 294915 ].
org.springframework.dao.IncorrectResultSizeDataAccessException: query did not return a unique result: 2
        at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:666)
        at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)
        at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:424)
        at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:339)
        at com.atlassian.crowd.dao.membership.MembershipDAOHibernate.findInternalMembership(MembershipDAOHibernate.java:214)
        at com.atlassian.crowd.dao.membership.MembershipDAOHibernate.isUserDirectMember(MembershipDAOHibernate.java:78)
        at com.atlassian.crowd.directory.AbstractInternalDirectory.isUserDirectGroupMember(AbstractInternalDirectory.java:664)
        at com.atlassian.crowd.directory.AbstractInternalDirectory.removeUserFromGroup(AbstractInternalDirectory.java:713)
        at com.atlassian.crowd.directory.DbCachingRemoteChangeOperations.removeUserMembershipsForGroup(DbCachingRemoteChangeOperations.java:687)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
        at com.atlassian.crowd.directory.$Proxy195.removeUserMembershipsForGroup(Unknown Source)
        at com.atlassian.crowd.directory.DirectoryCacheImplUsingChangeOperations.syncUserMembersForGroup(DirectoryCacheImplUsingChangeOperations.java:116)
        at com.atlassian.crowd.directory.ldap.cache.UsnChangedCacheRefresher.synchroniseMembershipsForGroup(UsnChangedCacheRefresher.java:109)
        at com.atlassian.crowd.directory.ldap.cache.AbstractCacheRefresher.synchroniseMemberships(AbstractCacheRefresher.java:62)
        at com.atlassian.crowd.directory.ldap.cache.AbstractCacheRefresher.synchroniseAll(AbstractCacheRefresher.java:36)
        at com.atlassian.crowd.directory.ldap.cache.UsnChangedCacheRefresher.synchroniseAll(UsnChangedCacheRefresher.java:219)
        at com.atlassian.crowd.directory.DbCachingRemoteDirectory.synchroniseCache(DbCachingRemoteDirectory.java:652)
        at com.atlassian.crowd.manager.directory.DirectorySynchroniserImpl.synchronise(DirectorySynchroniserImpl.java:63)
        at com.atlassian.crowd.directory.DbCachingDirectoryPoller.pollChanges(DbCachingDirectoryPoller.java:50)
        at com.atlassian.crowd.manager.directory.monitor.poller.DirectoryPollerJobBean.executeInternal(DirectoryPollerJobBean.java:29)
        at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:86)
        at org.quartz.core.JobRunShell.run(JobRunShell.java:195)
        at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520)