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https://issues.apache.org/jira/browse/HADOOP-15223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16368199#comment-16368199
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fang zhenyi commented on HADOOP-15223:
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Attach the updated HADOOP-15223.005.patch to fix checkstyle.
> Replace Collections.EMPTY_SET and EMPTY_MAP with emptySet() and emptyMap()
> when available
> -----------------------------------------------------------------------------------------
>
> Key: HADOOP-15223
> URL: https://issues.apache.org/jira/browse/HADOOP-15223
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Akira Ajisaka
> Assignee: fang zhenyi
> Priority: Minor
> Labels: newbie
> Attachments: HADOOP-15223.001.patch, HADOOP-15223.002.patch,
> HADOOP-15223.003.patch, HADOOP-15223.004.patch, HADOOP-15223.005.patch
>
>
> 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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