Michael Osipov updated MNG-4142:
    Summary: Maven doesn't try to download SNAPSHOT artifacts, if you've 
installed them locally  (was: Maven doesn't try to download a dependency when 
it already exists a version with classifier locally)

> Maven doesn't try to download SNAPSHOT artifacts, if you've installed them 
> locally
> ----------------------------------------------------------------------------------
>                 Key: MNG-4142
>                 URL: https://issues.apache.org/jira/browse/MNG-4142
>             Project: Maven
>          Issue Type: Bug
>          Components: Dependencies
>    Affects Versions: 2.0.9, 2.0.10, 2.1.0
>         Environment: Java 5, Windows XP
>            Reporter: Arnaud HERITIER
>            Priority: Critical
>             Fix For: Issues to be reviewed for 3.x
>         Attachments: MNG-4142.patch, test-metadata-local-clover.zip
> When maven installs in the local repository an artifact with a classifier, 
> and not the principal artifact, it won't try in a reactor to download the 
> principal artifact from the remote repository.
> I created a testcase to reproduce it. It's quite simple. You unzip it and in 
> the root directory you launch {code}mvn site{code}
> This build uses clover, thus it installs locally cloverified versions of 
> artifacts.
> The build will fail because it doesn't find the SNAPSHOT of the module1 :
> {code}
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] Failed to resolve artifact.
> Missing:
> ----------
> 1) org.apache.maven.it.test-metadata-local-clover:module1:jar:1.0.0-SNAPSHOT
>   Try downloading the file manually from the project website.
>   Then, install it using the command:
>       mvn install:install-file 
> -DgroupId=org.apache.maven.it.test-metadata-local-clover -DartifactId=module1 
> -Dversion=1.0.0-SNAPSHOT -Dpackaging=jar -Dfile=/pa
> th/to/file
>   Alternatively, if you host your own repository you can deploy the file 
> there:
>       mvn deploy:deploy-file 
> -DgroupId=org.apache.maven.it.test-metadata-local-clover -DartifactId=module1 
> -Dversion=1.0.0-SNAPSHOT -Dpackaging=jar -Dfile=/path
> /to/file -Durl=[url] -DrepositoryId=[id]
>   Path to dependency:
>         1) 
> org.apache.maven.it.test-metadata-local-clover:module2:jar:1.0.0-SNAPSHOT
>         2) 
> org.apache.maven.it.test-metadata-local-clover:module1:jar:1.0.0-SNAPSHOT
> ----------
> 1 required artifact is missing.
> for artifact:
>   org.apache.maven.it.test-metadata-local-clover:module2:jar:1.0.0-SNAPSHOT
> from the specified remote repositories:
>   central (http://maven-proxy.groupe.generali.fr/all),
>   remote-repo 
> (file://E:\jtb\workspaces\tests\test-metadata-local-clover/remote-repo)
> {code}
> It's anormal because I set a "local" remote repository in the build where it 
> should try to download it.
> You can validate that it is working by launching :
> {code}mvn install -f module2/pom.xml{code}
> This bug is really annoying for us. It exists for a long long time now. I 
> thought it was due to a problem with metadata sent by archiva, but after 
> migrating to nexus the problem always occurs. 
> I don't know if the problem is in metadata or in the reactor itself. I think 
> it is the second one. There are many issues opened about the reactor and 
> classifiers.
> Is there some who can try if it can reproduce the error with my testcase ?
> It should be easy to create a real IT for maven with it if it is necessary.

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