[ http://jira.codehaus.org/browse/MNG-303?page=all ]
Brett Porter updated MNG-303:
-----------------------------
Assign To: Brett Porter
> dependency mediation and conflict management
> --------------------------------------------
>
> Key: MNG-303
> URL: http://jira.codehaus.org/browse/MNG-303
> Project: Maven 2
> Type: New Feature
> Components: maven-artifact
> Reporter: Brett Porter
> Assignee: Brett Porter
> Fix For: 2.0-alpha-3
>
>
> as previously planned, we need to introduce the concepts of dependency
> mediation and conflict management to complement the transitive dependency
> mechanism.
> Currently, a "nearest wins" approach is being taken which gives full control,
> but can result in having to re-state runtime dependencies to force a
> specified newer version in some instances.
> An example in the m2 build is that when maven-artifact requires a newer
> version of wagon, it is not applied to core because plexus-artifact-container
> depends on an older version.
> We should also only resolve a dependency once - for example, currently we
> build up the tree from all the versions of maven-artifact wanted, when in
> fact, we should decide what version of maven-artifact will be used, and use
> that for everything using maven-artifact before traversing to the next level.
> This would reduce the number of old dependencies appearing.
> This will continue to make mboot less useful without replicating the feature.
> I suggest that we only bootstrap maven-artifact (or move it to wagon and
> don't bootstrap it at all), and then use it and wagon to execute mboot itself.
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