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https://issues.apache.org/jira/browse/FLINK-9982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16559601#comment-16559601
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vinoyang commented on FLINK-9982:
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hi [~mingleizhang] can you provide more description about this issue, such as
stack trace, log, Flink version and so on?
> NPE in EnumValueSerializer#copy
> -------------------------------
>
> Key: FLINK-9982
> URL: https://issues.apache.org/jira/browse/FLINK-9982
> Project: Flink
> Issue Type: Bug
> Reporter: zhangminglei
> Priority: Major
>
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