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https://issues.apache.org/jira/browse/FLINK-1218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14204570#comment-14204570
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Robert Metzger commented on FLINK-1218:
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Hey [~sarutak], I gave you "Contributor" perms in JIRA so that you can assign
yourself to issues.
> Don't use "new Integer". Use "Integer.valueOf" instead.
> -------------------------------------------------------
>
> Key: FLINK-1218
> URL: https://issues.apache.org/jira/browse/FLINK-1218
> Project: Flink
> Issue Type: Bug
> Affects Versions: 0.8-incubating
> Reporter: Kousuke Saruta
> Assignee: Kousuke Saruta
>
> There are lots of "new Integer" or something line it in the code.
> We should use valueOf to avoid wasted instance creation.
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