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https://issues.apache.org/jira/browse/LUCENE-5952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14135136#comment-14135136
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Michael McCandless commented on LUCENE-5952:
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bq. Wait, it was lenient before.
Right, SegmentInfo.getVersion was lenient before, i.e. we read a String and
left it as a String in SegmentInfo. But then we needed to "compare leniently"
which was also scary ...
> Make Version.java lenient again?
> --------------------------------
>
> Key: LUCENE-5952
> URL: https://issues.apache.org/jira/browse/LUCENE-5952
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 4.10
> Reporter: Michael McCandless
> Priority: Blocker
> Fix For: 4.10.1, 4.11, 5.0
>
> Attachments: LUCENE-5952.patch
>
>
> As discussed on the dev list, it's spooky how Version.java tries to fully
> parse the incoming version string ... and then throw exceptions that lack
> details about what invalid value it received, which file contained the
> invalid value, etc.
> It also seems too low level to be checking versions (e.g. is not future proof
> for when 4.10 is passed a 5.x index by accident), and seems redundant with
> the codec headers we already have for checking versions?
> Should we just go back to lenient parsing?
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