[jira] [Commented] (LUCENE-5423) OpenBitSet hashCode and equals incongruent

["Jakob Zwiener (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-5423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13886535#comment-13886535 ] 

Jakob Zwiener commented on LUCENE-5423:
---------------------------------------

A pull request with a test and a possible fix has been sent on github.

> OpenBitSet hashCode and equals incongruent
> ------------------------------------------
>
>                 Key: LUCENE-5423
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5423
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: core/other
>    Affects Versions: 4.6.1
>            Reporter: Jakob Zwiener
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
>
> In org.apache.lucene.util.OpenBitSet the hashCode method might return different hash codes for equal bitsets. 
> This happens when there are bits set in words right of wlen. This might happen through a getAndSet call (the documentation states that getAndSet may only be called on positions that are smaller than the size - which is the length of the array not wlen - this might be another issue).



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