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https://issues.apache.org/jira/browse/LUCENE-3295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13063312#comment-13063312
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Michael McCandless commented on LUCENE-3295:
--------------------------------------------
Thank you for catching that something was amiss in the first place ;) That's
the hardest part.
> BitVector never skips fully populated bytes when writing ClearedDgaps
> ---------------------------------------------------------------------
>
> Key: LUCENE-3295
> URL: https://issues.apache.org/jira/browse/LUCENE-3295
> Project: Lucene - Java
> Issue Type: Bug
> Components: core/other
> Affects Versions: 4.0
> Reporter: Simon Willnauer
> Assignee: Simon Willnauer
> Priority: Minor
> Fix For: 4.0
>
> Attachments: LUCENE-3295.patch, LUCENE-3295.patch
>
>
> When writing cleared DGaps in BitVector we compare a byte against 0xFF (255)
> yet the byte is casted into an int (-1) and the comparison will never
> succeed. We should mask the byte with 0xFF before comparing or compare
> against -1
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