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https://issues.apache.org/jira/browse/MNG-7701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17694269#comment-17694269
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David M. Lloyd commented on MNG-7701:
-------------------------------------
It is easy to demonstrate that this is *not* fixed and also *not* in line with
the spec, with just this one important example (yes this does break for us):
{code}
$ jbang org.apache.maven:maven-artifact:3.8.6 1.0.final-redhat-0001
1.0.sp1-redhat-0001
Display parameters as parsed by Maven (in canonical form and as a list of
tokens) and comparison result:
1. 1.0.final-redhat-0001 -> 1-redhat-1; tokens: [1, [redhat, [1]]]
1.0.final-redhat-0001 < 1.0.sp1-redhat-0001
2. 1.0.sp1-redhat-0001 -> 1.0.sp-1-redhat-1; tokens: [1, 0, sp, [1, [redhat,
[1]]]]
{code}
versus
{code}
$ jbang org.apache.maven:maven-artifact:3.8.7 1.0.final-redhat-0001
1.0.sp1-redhat-0001
Display parameters as parsed by Maven (in canonical form and as a list of
tokens) and comparison result:
1. 1.0.final-redhat-0001 -> 1-redhat-1; tokens: [1, [redhat, [1]]]
1.0.final-redhat-0001 > 1.0.sp1-redhat-0001
2. 1.0.sp1-redhat-0001 -> 1-sp-1-redhat-1; tokens: [1, [sp, [1, [redhat, [1]]]]]
{code}
As you can see, our `sp` release is now ordered *after* our `final` release
despite this clear text in the "spec":
bq. Non-numeric tokens ("qualifiers") have the alphabetical order, except for
the following tokens which come first in this order: "alpha" < "beta" <
"milestone" < "rc" = "cr" < "snapshot" < "" = "final" = "ga" < "sp"
It's clear that this tokenization isn't really correct by any reasonable
measurement, and breaking large amounts of (our) existing artifacts in the wild
is definitely not OK.
> Incompatible version sorting changes
> ------------------------------------
>
> Key: MNG-7701
> URL: https://issues.apache.org/jira/browse/MNG-7701
> Project: Maven
> Issue Type: Bug
> Components: Core
> Affects Versions: 3.8.7, 3.9.0
> Reporter: David M. Lloyd
> Assignee: Elliotte Rusty Harold
> Priority: Major
>
> Between 3.8.6 and 3.8.7, the sorting of a variety of version strings has
> changed. This table captures the observed relations:
> ||Input 1||3.8.6||3.8.7||Input 2||
> |{{0.x}}|{{>}}|{{==}}|{{0-x}}|
> |{{1.x}}|{{<}}|{{==}}|{{1-x}}|
> |{{1.x}}|{{<}}|{{>}}|{{1_y}}|
> |{{1.y}}|{{<}}|{{>}}|{{1_x}}|
> |{{1-alpha}}|{{>}}|{{==}}|{{1.alpha}}|
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