Duplicate key insertion violation for cwd_directory_attribute table

 ERROR [Caesium-1-4] c.a.c.d.DbCachingDirectoryPoller Error occurred while refreshing the cache for directory [ xxxx ]. java.lang.IllegalStateException: Updating end time with no current start synchronisation time.

2019-09-27 13:28:19,313 WARN  [Caesium-1-1]  o.h.e.jdbc.spi.SqlExceptionHelper SQL Error: 2627, SQLState: 23000
2019-09-27 13:28:19,313 ERROR [Caesium-1-1]  o.h.e.jdbc.spi.SqlExceptionHelper Violation of PRIMARY KEY constraint 'SYS_PK_10133'. Cannot insert duplicate key in object 'dbo.cwd_directory_attribute'. The duplicate key value is (xxxxx, com.atlassian.crowd.directory.sync.currentstartsynctime).
2019-09-27 13:28:19,313 ERROR [Caesium-1-1]  o.h.i.ExceptionMapperStandardImpl HHH000346: Error during managed flush [org.hibernate.exception.ConstraintViolationException: could not execute batch]
2019-09-27 13:28:19,315 ERROR [Caesium-1-1]  c.a.c.d.DbCachingDirectoryPoller Error occurred while refreshing the cache for directory [ xxxx ].
org.springframework.dao.DataIntegrityViolationException: could not execute batch; SQL [insert into cwd_directory_attribute (directory_id, attribute_name, attribute_value) values (?, ?, ?)]; constraint [null]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute batch
	at org.springframework.orm.hibernate5.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:247)
	at org.springframework.orm.hibernate5.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:801)
	at org.springframework.orm.hibernate5.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:637)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:746)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:714)
	at com.atlassian.crowd.manager.directory.DirectorySynchroniserImpl.synchronise(DirectorySynchroniserImpl.java:75)
	at jdk.internal.reflect.GeneratedMethodAccessor782.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at com.atlassian.crowd.directory.DbCachingDirectoryPoller.pollChanges(DbCachingDirectoryPoller.java:45)
	at com.atlassian.crowd.manager.directory.monitor.poller.DirectoryPollerJobRunner.runJob(DirectoryPollerJobRunner.java:92)
	at com.atlassian.scheduler.core.JobLauncher.runJob(JobLauncher.java:134)
	at com.atlassian.scheduler.core.JobLauncher.launchAndBuildResponse(JobLauncher.java:106)
	at com.atlassian.scheduler.core.JobLauncher.launch(JobLauncher.java:90)
	at com.atlassian.scheduler.caesium.impl.CaesiumSchedulerService.launchJob(CaesiumSchedulerService.java:435)
	at com.atlassian.scheduler.caesium.impl.CaesiumSchedulerService.executeClusteredJob(CaesiumSchedulerService.java:430)
	at com.atlassian.scheduler.caesium.impl.CaesiumSchedulerService.executeClusteredJobWithRecoveryGuard(CaesiumSchedulerService.java:454)
	at com.atlassian.scheduler.caesium.impl.CaesiumSchedulerService.executeQueuedJob(CaesiumSchedulerService.java:382)
	at com.atlassian.scheduler.caesium.impl.SchedulerQueueWorker.executeJob(SchedulerQueueWorker.java:66)
	at com.atlassian.scheduler.caesium.impl.SchedulerQueueWorker.executeNextJob(SchedulerQueueWorker.java:60)
	at com.atlassian.scheduler.caesium.impl.SchedulerQueueWorker.run(SchedulerQueueWorker.java:35)
	at java.base/java.lang.Thread.run(Thread.java:834)
	... 17 frames trimmed
Caused by: org.hibernate.exception.ConstraintViolationException: could not execute batch
	at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:112)
	at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)
	at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.performExecution(BatchingBatch.java:129)
	at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.doExecuteBatch(BatchingBatch.java:105)
	at org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl.execute(AbstractBatchImpl.java:147)
	at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.executeBatch(JdbcCoordinatorImpl.java:212)
	at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:633)
	at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:478)
	at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:356)
	at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
	at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1484)
	at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:515)
	at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3348)
	at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2519)
	at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:473)
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:178)
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$300(JdbcResourceLocalTransactionCoordinatorImpl.java:39)
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:271)
	at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:104)
	at org.springframework.orm.hibernate5.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:625)
	... 19 common frames omitted
Caused by: java.sql.BatchUpdateException: Violation of PRIMARY KEY constraint 'SYS_PK_10133'. Cannot insert duplicate key in object 'dbo.cwd_directory_attribute'. The duplicate key value is (229378, com.atlassian.crowd.directory.sync.currentstartsynctime).
	at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.executeBatch(SQLServerPreparedStatement.java:2065)
	at com.zaxxer.hikari.pool.ProxyStatement.executeBatch(ProxyStatement.java:128)
	at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeBatch(HikariProxyPreparedStatement.java)
	at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.performExecution(BatchingBatch.java:119)
	... 36 common frames omitted