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https://issues.apache.org/jira/browse/FLINK-8661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16365158#comment-16365158
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mingleizhang commented on FLINK-8661:
-------------------------------------

Thanks [~yuzhih...@gmail.com] I will take a look on this.

> Replace Collections.EMPTY_MAP with Collections.emptyMap()
> ---------------------------------------------------------
>
>                 Key: FLINK-8661
>                 URL: https://issues.apache.org/jira/browse/FLINK-8661
>             Project: Flink
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Priority: Minor
>
> The use of Collections.EMPTY_SET and Collections.EMPTY_MAP often causes 
> unchecked assignment and it should be replaced with Collections.emptySet() 
> and Collections.emptyMap()



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