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https://jira.codehaus.org/browse/MNG-5591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=341954#comment-341954
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Jason van Zyl commented on MNG-5591:
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That dummy workspace reader never returns any versions and returns null for
findArtifact so I'm not sure what's happening but that implementation should
never return anything so something else is going on. Do you have the source for
the actual WorkspaceReader that is causing the issue?
> Installing workspace reader triggers MNG-5503
> ---------------------------------------------
>
> Key: MNG-5591
> URL: https://jira.codehaus.org/browse/MNG-5591
> Project: Maven 2 & 3
> Issue Type: Bug
> Components: Artifacts and Repositories
> Affects Versions: 3.2.1
> Reporter: Mikolaj Izdebski
> Attachments:
> 0001-MNG-5591-Set-role-hint-for-ReactorReader-to-default.patch,
> dummy-extension.tar.gz
>
>
> It looks like Maven 3.2.1 introduced a regression. Installing
> extension which provides workspace reader triggers MNG-5503.
> Maven resolves artifacts from reactor, workspace, repositories (in
> that order). In standard Maven distribution there is no workspace,
> but Maven provides an extension point which allows extensions to
> install workspace reader by providing a component with role
> {{org.eclipse.aether.repository.WorkspaceReader}} and role hint {{ide}}.
> Installing workspace reader extension in Maven 3.2.1 triggers a
> regression - Maven fails to resolve artifacts produced by reactor
> build (MNG-5503). Even though artifact is present in reactor Maven
> queries workspace about it and if artifact is not found there it
> continues with repositories. Expected behaviour is resolving artifact
> from reactor.
> Steps to reproduce this:
> 1) download and extract {{apache-maven-3.2.1-bin.tar.gz}}
> 2) download dummy-extension.tar.gz and build it with {{mvn package}}
> 3) download reproducer for MNG-5503 from:
> https://bugzilla.redhat.com/attachment.cgi?id=784786
> 4) try to build reproducer project, it succeeds
> 5) copy {{dummy-extension-1.0.0.jar}} to Maven {{lib/ext}}
> 6) try to build reproducer project, it fails
> When repeating the same steps for Maven 3.1.1 failure is not reproducible.
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