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https://issues.apache.org/jira/browse/MRESOLVER-224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17445842#comment-17445842
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Tuomas Kiviaho commented on MRESOLVER-224:
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I found a reference to this oddity via blame. MNG-4955 states that this is a
remnant from fixing the early days of metadata files (MNG-4452). It's still
unclear to me what this exactly fixed even though there is a clear explanation
for it.
I can't fathom why it wouldn't have without this fix. Maybe if the metadata for
{{SNAPSHOT<myclassifier>:jar}} was missing all-together then falling back to
whatever repo with the latest {{SNAPSHOT}} key would function as a fallback,
but that's not the described use case.
> DefaultVersionResolver is inflicting ArtifactNotFoundException for
> classifiers with SNAPSHOT version
> ----------------------------------------------------------------------------------------------------
>
> Key: MRESOLVER-224
> URL: https://issues.apache.org/jira/browse/MRESOLVER-224
> Project: Maven Resolver
> Issue Type: Bug
> Components: Resolver
> Affects Versions: 1.6.3
> Reporter: Tuomas Kiviaho
> Priority: Major
>
> I use classifier artifact along with the artifact itself as a dependency in a
> Maven Invoker Plugin project. The project that calls the invoker has the
> artifact itself as a dependency, but no reference to the classifier.
> This causes resolving of the maven-metadata.xml for the project itself plus
> downloading of the dependency artifact.When invoker is called the artifact is
> already downloaded to the local repo and cached with SNAPSHOT key.
> This causes the DefaultVersionResolver to merge the version information of
> the SNAPSHOT<myclassifier>:jar artifact that is now being resolved with the
> already downloaded SNAPSHOT key. Since the local version is newer than the
> repo version the DefaultVersionResolver thinks SNAPSHOT<myclassifier>:jar to
> be outdated thus overriding it with local repo.
> Since the SNAPSHOT<myclassifier>:jar doesn't exist in the local repo there
> are no remote report left to try the DefaultArtifactResolver fails ultimately
> to ArtifactNotFoundException since there was no download task.
> {code:java}
> [INFO] [DEBUG] Resolving artifact
> <mygroupid>.<myartifactid>:jar:<myclassifier>:<mybaseversion>-SNAPSHOT from
> []{code}
>
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