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Listner exception

Question asked by bweiss on Dec 1, 2010
Latest reply on May 15, 2012 by sharifu
I need some help comprehending a frequent error in our log file. We are running Community 3.3.0 on Ubuntu 9.04.

The error below has shown up more and more frequently in our log files and begins before the server has even completed starting. We are running a script which attempts to thumbnail files added to a particular directory. AFAIK the thumbnails seem to be getting created properly but I am not sure where else to look to find out what is going wrong or what I may not have configured properly.

16:26:36,527 ERROR [org.alfresco.repo.transaction.AlfrescoTransactionSupport] After completion (committed) listener exception: 
   listener: org.alfresco.repo.action.ActionTransactionListener@fc42cfa2
java.lang.NullPointerException
   at org.alfresco.repo.action.CreateThumbnailActionFilter.compare(CreateThumbnailActionFilter.java:47)
   at org.alfresco.repo.action.CreateThumbnailActionFilter.compare(CreateThumbnailActionFilter.java:30)
   at org.alfresco.repo.action.AsynchronousActionExecutionQueueImpl.executeAction(AsynchronousActionExecutionQueueImpl.java:277)
   at org.alfresco.repo.action.AsynchronousActionExecutionQueueImpl.executeAction(AsynchronousActionExecutionQueueImpl.java:219)
   at org.alfresco.repo.action.ActionServiceImpl.queueAction(ActionServiceImpl.java:555)
   at org.alfresco.repo.action.ActionServiceImpl.postCommit(ActionServiceImpl.java:542)
   at org.alfresco.repo.action.ActionTransactionListener.afterCommit(ActionTransactionListener.java:77)
   at org.alfresco.repo.transaction.AlfrescoTransactionSupport$TransactionSynchronizationImpl.afterCompletion(AlfrescoTransactionSupport.java:808)
   at org.springframework.transaction.support.TransactionSynchronizationUtils.invokeAfterCompletion(TransactionSynchronizationUtils.java:168)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.invokeAfterCompletion(AbstractPlatformTransactionManager.java:996)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.triggerAfterCompletion(AbstractPlatformTransactionManager.java:971)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:799)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723)
   at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:394)
   at org.alfresco.util.transaction.SpringAwareUserTransaction.commit(SpringAwareUserTransaction.java:472)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:343)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:228)
   at org.alfresco.repo.action.AsynchronousActionExecutionQueueImpl$ActionExecutionWrapper$1.doWork(AsynchronousActionExecutionQueueImpl.java:499)
   at org.alfresco.repo.security.authentication.AuthenticationUtil.runAs(AuthenticationUtil.java:508)
   at org.alfresco.repo.action.AsynchronousActionExecutionQueueImpl$ActionExecutionWrapper.run(AsynchronousActionExecutionQueueImpl.java:502)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
   at java.lang.Thread.run(Thread.java:619)

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