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https://issues.apache.org/jira/browse/MAPREDUCE-4138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13257750#comment-13257750
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Robert Joseph Evans commented on MAPREDUCE-4138:
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The change looks good to me, but could you take a look at the javac warning
{noformat}
[WARNING]
/home/jenkins/jenkins-slave/workspace/PreCommit-MAPREDUCE-Build/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/Counters.java:[396,25]
[unchecked] unchecked call to FrameworkCounter(T,java.lang.String) as a member
of the raw type
org.apache.hadoop.mapreduce.counters.FrameworkCounterGroup.FrameworkCounter
{noformat}
> Reduce memory usage of counters due to non-static nested classes
> ----------------------------------------------------------------
>
> Key: MAPREDUCE-4138
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4138
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Tom White
> Assignee: Tom White
> Attachments: MAPREDUCE-4138.patch
>
>
> FrameworkCounter is a non-static nested class of FrameworkCounterGroup which
> means it retains a reference to the outer class, which isn't really needed.
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