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https://issues.apache.org/jira/browse/HADOOP-1356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12496844
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Hadoop QA commented on HADOOP-1356:
-----------------------------------
Integrated in Hadoop-Nightly #92 (See
http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/92/)
> ValueHistogram.addNextValue(Object) ignores return value of
> String.substring(int, int)
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-1356
> URL: https://issues.apache.org/jira/browse/HADOOP-1356
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.12.3
> Reporter: Nigel Daley
> Assigned To: Runping Qi
> Priority: Blocker
> Fix For: 0.13.0
>
> Attachments: patch-1356.txt
>
>
> ValueHistogram.java line 54
> The String.substring method doesn't update the object it operates on.
> Instead, it returns a new String object. This return value is ignored, which
> must be a bug.
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