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https://issues.apache.org/jira/browse/HADOOP-7706?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer reassigned HADOOP-7706:
----------------------------------------

    Assignee: Allen Wittenauer

> have the pre-commit checks run by hudson veto patches with System.out and 
> System.err calls in them
> --------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-7706
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7706
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>            Reporter: Steve Loughran
>            Assignee: Allen Wittenauer
>            Priority: Minor
>
> I don't know how to do this, but we ought to get checkstyle to reject 
> System.out and System.err calls, to stop them unintentionally getting into 
> code. We may still need them in some places (LogLevel, external entry 
> points), but those main() methods could all delegate to our own log output 
> method that provides a single place where messages get printed



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