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https://issues.apache.org/jira/browse/KAFKA-4774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15873190#comment-15873190
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ASF GitHub Bot commented on KAFKA-4774:
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Github user asfgit closed the pull request at:
https://github.com/apache/kafka/pull/2558
> Inner classes which don't need a reference to the outer class should be static
> ------------------------------------------------------------------------------
>
> Key: KAFKA-4774
> URL: https://issues.apache.org/jira/browse/KAFKA-4774
> Project: Kafka
> Issue Type: Improvement
> Reporter: Colin P. McCabe
> Assignee: Colin P. McCabe
>
> Inner classes which don't need a reference to the outer class should be
> static. This takes up less space in memory, generates less load on the
> garbage collector, and eliminates a findbugs warning.
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