[jira] (MNG-3119) Duplicate attached artifacts should not be allowed.

["Benson Margulies (JIRA)" <ji...@codehaus.org>]

     [ https://jira.codehaus.org/browse/MNG-3119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benson Margulies closed MNG-3119.
---------------------------------

    Resolution: Won't Fix
      Assignee: Benson Margulies  (was: John Casey)

I've reached the conclusion that this is desirable and useful behavior.

Consider the maven-shade-plugin. It eats the output of the jar plugin and produces a replacement. It absolutely should supply a new file that replaces the old file.

If a user creates multiple executions that produce the same resulting artifact, the last one should win.

That set of semantics are not currently implemented, but I have another JIRA in which to implement them.
                
> Duplicate attached artifacts should not be allowed.
> ---------------------------------------------------
>
>                 Key: MNG-3119
>                 URL: https://jira.codehaus.org/browse/MNG-3119
>             Project: Maven 2 & 3
>          Issue Type: Improvement
>          Components: General
>    Affects Versions: 2.0.7
>            Reporter: Paul Gier
>            Assignee: Benson Margulies
>             Fix For: Issues to be reviewed for 3.x
>
>         Attachments: build.log, MNG-3119-maven-project-r558713.patch
>
>
> Currently, a project allows duplicate artifacts to be attached.  This causes the second and other additional artifacts to overwrite the first attached artifact.  This occurs during the package, install, and deploy phases.
> This can be reproduced by adding three instances of the source plugin (with different ids) to a project build configuration.  The 2nd plugin will overwrite the first, and the third will overwrite the second.
> The desired behaviour is that the user should receive a warning or error when this happens.

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