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https://issues.apache.org/jira/browse/MINSTALL-159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16843417#comment-16843417
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Karl Heinz Marbaise commented on MINSTALL-159:
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It looks like that needs to be checked in maven-artifact-transfer which does
the real installation.
> Prevent adding several times the same file for install
> ------------------------------------------------------
>
> Key: MINSTALL-159
> URL: https://issues.apache.org/jira/browse/MINSTALL-159
> Project: Maven Install Plugin
> Issue Type: Improvement
> Affects Versions: 3.0.0-M1
> Reporter: Karl Heinz Marbaise
> Priority: Critical
> Fix For: 3.0.0
>
>
> Currently you can execute several times maven-source-plugin and create more
> than one file which should be installed.
> That will result in installing several times the same file which means this
> will overwrite the file.
> Later with maven-deploy-plugin that will result in failure during release
> cause in case of releases that will be blocked by a repository manager.
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