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https://issues.apache.org/jira/browse/LUCENE-5850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14079281#comment-14079281
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Uwe Schindler commented on LUCENE-5850:
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Then we should change issue title and description!
{quote}
Constants#LUCENE_MAIN_VERSION is set to the Lucene Main version and should not
contain minor versions. Well this is at least what I thought and to my
knowledge what the comments say too. Yet in for instance 4.3.1 and 4.5.1 we
broke this such that the version from SegmentsInfo can not be parsed with
Version#parseLeniently. IMO we should really add an assertion that this
constant doesn't throw an error and / or make the smoketester catch this. to me
this is actually a index BWC break. Note that 4.8.1 doesn't have this problem...
{quote}
This was fixed in LUCENE-5537 because it enforced LUCENE_MAIN_VERSION to be
"x.y" or "x.y.0.z" via regex.
> Constants#LUCENE_MAIN_VERSION can have broken values
> -----------------------------------------------------
>
> Key: LUCENE-5850
> URL: https://issues.apache.org/jira/browse/LUCENE-5850
> Project: Lucene - Core
> Issue Type: Bug
> Components: general/build
> Affects Versions: 4.3.1, 4.5.1
> Reporter: Simon Willnauer
> Fix For: 5.0, 4.10
>
> Attachments: LUCENE-5850.patch, LUCENE-5850.patch,
> LUCENE-5850_bomb.patch, LUCENE-5850_smoketester.patch
>
>
> Constants#LUCENE_MAIN_VERSION is set to the Lucene Main version and should
> not contain minor versions. Well this is at least what I thought and to my
> knowledge what the comments say too. Yet in for instance 4.3.1 and 4.5.1 we
> broke this such that the version from SegmentsInfo can not be parsed with
> Version#parseLeniently. IMO we should really add an assertion that this
> constant doesn't throw an error and / or make the smoketester catch this. to
> me this is actually a index BWC break. Note that 4.8.1 doesn't have this
> problem...
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