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https://issues.apache.org/jira/browse/LUCENE-5952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14134490#comment-14134490
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Michael McCandless commented on LUCENE-5952:
--------------------------------------------
In fact it wasn't lenient before at all ... it used Version.valueOf (and
Version was an enum) so that would also hit IAE for any invalid versions (i.e.
that did not have an exact matching enum constant)...
I think for this issue I'll just try to improve the error reporting when there
is a problem...
> Make Version.java lenient again?
> --------------------------------
>
> Key: LUCENE-5952
> URL: https://issues.apache.org/jira/browse/LUCENE-5952
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Michael McCandless
> Priority: Blocker
> Fix For: 4.10.1, 4.11, 5.0
>
>
> 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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