[jira] Commented: (MNG-2225) Classloader problem when adding jars to M2_HOME

["Brett Porter (JIRA)" <ji...@codehaus.org>]

    [ http://jira.codehaus.org/browse/MNG-2225?page=comments#action_63536 ] 

Brett Porter commented on MNG-2225:
-----------------------------------

you need to filter anything in lib (or custom) from turning up in plugins (in the plugin manager).

So replacing anything in lib by putting it in custom is fine, but adding stuff is not.

> Classloader problem when adding jars to M2_HOME
> -----------------------------------------------
>
>          Key: MNG-2225
>          URL: http://jira.codehaus.org/browse/MNG-2225
>      Project: Maven 2
>         Type: Bug

>   Components: Dependencies
>     Versions: 2.0.4
>     Reporter: Carlos Sanchez
>     Priority: Critical
>      Fix For: 2.0.5
>  Attachments: testwagonscm.tgz
>
>
> Added these jars to M2_HOME/custom to allow using scm based remote repos
> http://www.ibiblio.org/maven2/org/apache/maven/scm/maven-scm-api/1.0-beta-2/maven-scm-api-1.0-beta-2.jar
> http://www.ibiblio.org/maven2/org/apache/maven/scm/maven-scm-manager-plexus/1.0-beta-2/maven-scm-manager-plexus-1.0-beta-2.jar
> http://www.ibiblio.org/maven2/org/apache/maven/scm/maven-scm-provider-svn/1.0-beta-2/maven-scm-provider-svn-1.0-beta-2.jar
> http://cvs.apache.org/maven-snapshot-repository/org/apache/maven/wagon/wagon-scm/1.0-alpha-7-SNAPSHOT/wagon-scm-1.0-alpha-7-20060308.183410-3.jar
> bin/m2.conf
> main is org.apache.maven.cli.MavenCli from plexus.core.maven
> set maven.home default ${user.home}/m2
> [plexus.core]
> load ${maven.home}/core/*.jar
> [plexus.core.maven]
> load ${maven.home}/custom/*.jar
> load ${maven.home}/lib/*.jar
> When running "mvn install" and "mvn testwagonscm:test" in the attached test case you get a ClassCastException although the Class to assign to and the assigned one are the same. The problem seems to be that they come from different classloaders. This problem makes the project-info-report:scm goal fail.

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