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https://issues.apache.org/jira/browse/FLINK-5585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15832201#comment-15832201
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Stephan Ewen commented on FLINK-5585:
-------------------------------------
Added an additional check to the JobManager that a null accumulator snapshot
cannot bring the JobManager down.
> NullPointer Exception in JobManager.updateAccumulators
> ------------------------------------------------------
>
> Key: FLINK-5585
> URL: https://issues.apache.org/jira/browse/FLINK-5585
> Project: Flink
> Issue Type: Bug
> Components: JobManager
> Affects Versions: 1.2.0, 1.1.4
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 1.2.0, 1.3.0, 1.1.5
>
>
> {code}
> NullPointerException
> at JobManager$$updateAccumulators$1.apply(JobManager.scala:1790)
> at JobManager$$updateAccumulators$1.apply(JobManager.scala:1788)
> at scala.collection.mutable.ResizableArray$class.forEach(ArrayBuffer.scala:48)
> at scala.collection.mutable.ArrayBuffer.forEach(ArrayBuffer.scala:48)
> at
> org.apache.flink.runtime.jobmanager.JobManager.org$apache$flink$runtime$jobmanager$JobManager$$updateAccumulators(JobManager.scala:1788)
> at
> org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1.applyOrElse(JobManager.scala:967)
> at
> scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36)
> at
> org.apache.flink.runtime.LeaderSessionMassageFilter$$anonfun$receive$1.applyOrEslse(LeaderSessionMessageFilter.scala:44)
> at
> scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36)
> at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33)
> at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28)
> at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
> at
> org.apache.flink.runtime.LogMesages$$anon$1.applyOrElse(LogMessages.scala:28)
> {code}
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