[jira] Closed: (MPLUGIN-80) Detection of report goals always fails due to class loader separation

["Vincent Siveton (JIRA)" <ji...@codehaus.org>]

     [ http://jira.codehaus.org/browse/MPLUGIN-80?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vincent Siveton closed MPLUGIN-80.
----------------------------------

         Assignee: Vincent Siveton
       Resolution: Fixed
    Fix Version/s: 2.4

Fixed and snapshots redeployed

> Detection of report goals always fails due to class loader separation
> ---------------------------------------------------------------------
>
>                 Key: MPLUGIN-80
>                 URL: http://jira.codehaus.org/browse/MPLUGIN-80
>             Project: Maven 2.x Plugin Tools
>          Issue Type: Bug
>          Components: API, Plugin Plugin
>            Reporter: Benjamin Bentmann
>            Assignee: Vincent Siveton
>             Fix For: 2.4
>
>
> {{PluginUtils}} simply invokes {{Class.forName(String)}} to load a mojo class from the current project using its plugin class loader. However, as outlined in [Guide to Maven Classloading|http://maven.apache.org/guides/mini/guide-maven-classloading.html], Maven plugins have no direct access to the classes of the current project.
> Besides, wouldn't the maven-plugin-plugin's {{report}} goal need {{@execute phase="compile"}} in order to ensure the mojo classes are existent prior to try to load them?
> Not sure about that but maybe it's worth to extend the mojo descriptor with a flag "report" such that this info could be retrieved without reflection in some far future but is derived by the goal extractors.
> P.S: You don't need to instantiate a class just to do {{instanceof}} checking. To check for a report mojo simply do:
> {code:java}
> MavenReport.class.isAssignableFrom( clazz );
> {code}

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