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https://issues.apache.org/jira/browse/LUCENE-3877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13235065#comment-13235065
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Greg Bowyer commented on LUCENE-3877:
-------------------------------------
Thats a good point and started bugging me last night when I was thinking about
it.
As as result attached is a static analysis version that will hate any GETSTATIC
java/lang/System::(err|out) (I briefly looked at findbugs and did not find a
working version for this idea)
This one uses ASM 3.3
> Lucene should not call System.out.println
> -----------------------------------------
>
> Key: LUCENE-3877
> URL: https://issues.apache.org/jira/browse/LUCENE-3877
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Michael McCandless
> Fix For: 3.6, 4.0
>
> Attachments: IllegalSystemTest.java, IllegalSystemTest.java
>
>
> We seem to have accumulated a few random sops...
> Eg, PairOutputs.java (oal.util.fst) and MultiDocValues.java, 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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