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https://issues.apache.org/jira/browse/FLINK-22504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17334599#comment-17334599
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Dawid Wysakowicz commented on FLINK-22504:
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It is a duplicate of FLINK-13910
> add serialVersionUID for all Serializable class
> ------------------------------------------------
>
> Key: FLINK-22504
> URL: https://issues.apache.org/jira/browse/FLINK-22504
> Project: Flink
> Issue Type: Improvement
> Reporter: lincoln lee
> Priority: Major
>
> *"Serializable classes must define a Serial Version UID" is one of our
> quality guide, but there still exists non-compliance ones. We should fix
> this to avoid unexpected compatibility problems.*
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