[jira] [Commented] (MNG-6964) Maven version sorting is internally inconsistent

["Michael Osipov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MNG-6964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17370061#comment-17370061 ] 

Michael Osipov commented on MNG-6964:
-------------------------------------

Fixed with [ce27f0ec6184cdee40609817a2796c768d0df261|https://gitbox.apache.org/repos/asf?p=maven.git;a=commit;h=ce27f0ec6184cdee40609817a2796c768d0df261] for {{maven-3.8.x}} branch.

> Maven version sorting is internally inconsistent
> ------------------------------------------------
>
>                 Key: MNG-6964
>                 URL: https://issues.apache.org/jira/browse/MNG-6964
>             Project: Maven
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.6.3
>            Reporter: David M. Lloyd
>            Assignee: Dennis Lundberg
>            Priority: Major
>             Fix For: 4.0.0, 4.0.0-alpha-1
>
>
> There's a bug where version sorting is inconsistent. This manifests like this:
> {code:java}
> $ java -jar ~/local/apache-maven/lib/maven-artifact-3.6.3.jar 1-0.alpha 1
> Display parameters as parsed by Maven (in canonical form) and comparison result:
> 1. 1-0.alpha == 1-0.alpha
>    1-0.alpha == 1
> 2. 1 == 1
> $ java -jar ~/local/apache-maven/lib/maven-artifact-3.6.3.jar 1-0.beta 1
> Display parameters as parsed by Maven (in canonical form) and comparison result:
> 1. 1-0.beta == 1-0.beta
>    1-0.beta == 1
> 2. 1 == 1
> $ java -jar ~/local/apache-maven/lib/maven-artifact-3.6.3.jar 1-0.beta 1-0.alpha
> Display parameters as parsed by Maven (in canonical form) and comparison result:
> 1. 1-0.beta == 1-0.beta
>    1-0.beta > 1-0.alpha
> 2. 1-0.alpha == 1-0.alpha
> {code}
> Thus there is no correct total order: {{1-0.beta > 1.0.alpha}} even though both {{1-0.beta}} and {{1-0.alpha}} are equal to {{1}}.
> I think this is likely due to a logical bug where any dot-separated segments following a zero or release ({{ga}} or {{final}}) is simply truncated in certain circumstances:
> {code:java}
> $ java -jar ~/local/apache-maven/lib/maven-artifact-3.6.3.jar 1-0.x 1-0
> Display parameters as parsed by Maven (in canonical form) and comparison result:
> 1. 1-0.x == 1-0.x
>    1-0.x == 1-0
> 2. 1-0 == 1
> {code}
> but
> {code:java}
> $ java -jar ~/local/apache-maven/lib/maven-artifact-3.6.3.jar 1-0.x-1 1-0-1
> Display parameters as parsed by Maven (in canonical form) and comparison result:
> 1. 1-0.x-1 == 1-0.x-1
>    1-0.x-1 > 1-0-1
> 2. 1-0-1 == 1-1
> {code}



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