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https://issues.apache.org/jira/browse/FLINK-1390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14310629#comment-14310629
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Fabian Hueske commented on FLINK-1390:
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The possibly related issue FLINK-1438 has been fixed.
Can we somehow check if that fixes also this problem?
> java.lang.ClassCastException: X cannot be cast to X
> ----------------------------------------------------
>
> Key: FLINK-1390
> URL: https://issues.apache.org/jira/browse/FLINK-1390
> Project: Flink
> Issue Type: Bug
> Components: YARN Client
> Affects Versions: 0.8
> Reporter: Robert Metzger
>
> A user is affected by an issue, which is probably caused by different
> classloaders being used for loading user classes.
> Current state of investigation:
> - the error happens in yarn sessions (there is only a YARN environment
> available)
> - the error doesn't happen on the first time the job is being executed. It
> only happens on subsequent executions.
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