[jira] Commented: (MNG-4133) ssh-external wagon can not be overridden on its own

["John Casey (JIRA)" <ji...@codehaus.org>]

    [ http://jira.codehaus.org/browse/MNG-4133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=174404#action_174404 ] 

John Casey commented on MNG-4133:
---------------------------------

This seems to indicate a broader problem with scm, wagon, etc. providers. I can shade the http shared stuff and the ssh common scm stuff...what else do we need to think about on this front? 

Also, what does the failure look like when the extension loading mechanism comes apart? I'm happy to take a look, but I'm not entirely sure I know what to look for...

> ssh-external wagon can not be overridden on its own
> ---------------------------------------------------
>
>                 Key: MNG-4133
>                 URL: http://jira.codehaus.org/browse/MNG-4133
>             Project: Maven 2
>          Issue Type: Bug
>          Components: Class Loading
>    Affects Versions: 2.1.0
>            Reporter: Brett Porter
>             Fix For: 2.1.1
>
>
> when a project only overrides the ssh-external wagon, it causes the wagon-ssh that is built in to fail to load (probably because of a classloading conflict with ssh-common). See the linked issue for details.
> A couple of fixes are needed here:
> - don't crash the entire extension loading mechanism because one extension failed to load
> - possibly shade the common ssh JAR in the core so it doesn't cause the conflict in the first place.

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