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From "Dawid Weiss (Commented) (JIRA)" <>
Subject [jira] [Commented] (LUCENE-3877) Lucene should not call System.out.println
Date Wed, 21 Mar 2012 19:09:41 GMT


Dawid Weiss commented on LUCENE-3877:

You can just as well substitute your own implementation of PrintStream using System.setOut/setErr
and check stacks on printlns... But I agree with Benson that a static analysis approach is
much cleaner. Don't know if there's anything out of the box in findbugs/ pmd, but even if
not then this can be done as a 10-liner by applying an aspect to classes via aspectj and parsing
the output logs detecting if an aspect has been applied (it shouldn't match anywhere). 
> Lucene should not call System.out.println
> -----------------------------------------
>                 Key: LUCENE-3877
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Bug
>            Reporter: Michael McCandless
>             Fix For: 3.6, 4.0
>         Attachments:,
> We seem to have accumulated a few random sops...
> Eg, (oal.util.fst) and, at least.
> Can we somehow detect (eg, have a test failure) if we accidentally leave errant System.out.println's
(leftover from debugging)...?

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