jira6.1 use crowd 2.4 config SSO. ERR:[org.quartz.core.JobRunShell] Job DirectoryPoller.10000 threw an unhandled Exception:

[xufenfei]

error on JIRA server:

015-08-17 15:19:23,721 QuartzScheduler_Worker-3 ERROR [org.quartz.core.JobRunShell] Job DirectoryPoller.10000 threw an unhandled Exception:
java.lang.AbstractMethodError: com.atlassian.crowd.integration.rest.entity.UserEntity.getExternalId()Ljava/lang/String;
at com.atlassian.crowd.model.user.UserTemplate.<init>(UserTemplate.java:69)
at com.atlassian.crowd.model.user.UserTemplateWithAttributes.<init>(UserTemplateWithAttributes.java:28)
at com.atlassian.crowd.directory.RemoteCrowdDirectory.buildUserWithDirectoryId(RemoteCrowdDirectory.java:967)
at com.atlassian.crowd.directory.RemoteCrowdDirectory.buildUserListWithDirectoryId(RemoteCrowdDirectory.java:983)
at com.atlassian.crowd.directory.RemoteCrowdDirectory.searchUsers(RemoteCrowdDirectory.java:371)
at com.atlassian.crowd.directory.ldap.cache.RemoteDirectoryCacheRefresher.findAllRemoteUsers(RemoteDirectoryCacheRefresher.java:43)
at com.atlassian.crowd.directory.ldap.cache.RemoteDirectoryCacheRefresher.synchroniseAllUsers(RemoteDirectoryCacheRefresher.java:62)
at com.atlassian.crowd.directory.ldap.cache.AbstractCacheRefresher.synchroniseAll(AbstractCacheRefresher.java:78)
at com.atlassian.crowd.directory.ldap.cache.EventTokenChangedCacheRefresher.synchroniseAll(EventTokenChangedCacheRefresher.java:71)
at com.atlassian.crowd.directory.DbCachingRemoteDirectory.synchroniseCache(DbCachingRemoteDirectory.java:1008)
at com.atlassian.crowd.manager.directory.DirectorySynchroniserImpl.synchronise(DirectorySynchroniserImpl.java:75)
at com.atlassian.crowd.directory.DbCachingDirectoryPoller.pollChanges(DbCachingDirectoryPoller.java:50)
at com.atlassian.crowd.manager.directory.monitor.poller.DirectoryPollerJob.execute(DirectoryPollerJob.java:34)
at org.quartz.core.JobRunShell.run(JobRunShell.java:195)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520)

2015-08-17 15:19:23,724 QuartzScheduler_Worker-3 ERROR [org.quartz.core.ErrorLogger] Job (DirectoryPoller.10000 threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: java.lang.AbstractMethodError: com.atlassian.crowd.integration.rest.entity.UserEntity.getExternalId()Ljava/lang/String;]
at org.quartz.core.JobRunShell.run(JobRunShell.java:206)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520)
* Nested Exception (Underlying Cause) ---------------
java.lang.AbstractMethodError: com.atlassian.crowd.integration.rest.entity.UserEntity.getExternalId()Ljava/lang/String;
at com.atlassian.crowd.model.user.UserTemplate.<init>(UserTemplate.java:69)
at com.atlassian.crowd.model.user.UserTemplateWithAttributes.<init>(UserTemplateWithAttributes.java:28)
at com.atlassian.crowd.directory.RemoteCrowdDirectory.buildUserWithDirectoryId(RemoteCrowdDirectory.java:967)
at com.atlassian.crowd.directory.RemoteCrowdDirectory.buildUserListWithDirectoryId(RemoteCrowdDirectory.java:983)
at com.atlassian.crowd.directory.RemoteCrowdDirectory.searchUsers(RemoteCrowdDirectory.java:371)
at com.atlassian.crowd.directory.ldap.cache.RemoteDirectoryCacheRefresher.findAllRemoteUsers(RemoteDirectoryCacheRefresher.java:43)
at com.atlassian.crowd.directory.ldap.cache.RemoteDirectoryCacheRefresher.synchroniseAllUsers(RemoteDirectoryCacheRefresher.java:62)
at com.atlassian.crowd.directory.ldap.cache.AbstractCacheRefresher.synchroniseAll(AbstractCacheRefresher.java:78)
at com.atlassian.crowd.directory.ldap.cache.EventTokenChangedCacheRefresher.synchroniseAll(EventTokenChangedCacheRefresher.java:71)
at com.atlassian.crowd.directory.DbCachingRemoteDirectory.synchroniseCache(DbCachingRemoteDirectory.java:1008)
at com.atlassian.crowd.manager.directory.DirectorySynchroniserImpl.synchronise(DirectorySynchroniserImpl.java:75)
at com.atlassian.crowd.directory.DbCachingDirectoryPoller.pollChanges(DbCachingDirectoryPoller.java:50)
at com.atlassian.crowd.manager.directory.monitor.poller.DirectoryPollerJob.execute(DirectoryPollerJob.java:34)
at org.quartz.core.JobRunShell.run(JobRunShell.java:195)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520)

[xufenfei]

I don't know how to resolve it !