[jira] Updated: (MSHADE-91) Allow failing of build if overlapping classes are detected

["Andrew Swan (JIRA)" <ji...@codehaus.org>]

     [ http://jira.codehaus.org/browse/MSHADE-91?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Swan updated MSHADE-91:
------------------------------

    Attachment: MSHADE-91.patch

Here's a patch that adds a boolean configuration property called "duplicatesAreFatal", defaulting to "false" to preserve the current behaviour. When set to "true", a "BUILD FAILURE" message is shown, listing all duplications detected by the Shader.

> Allow failing of build if overlapping classes are detected
> ----------------------------------------------------------
>
>                 Key: MSHADE-91
>                 URL: http://jira.codehaus.org/browse/MSHADE-91
>             Project: Maven 2.x Shade Plugin
>          Issue Type: New Feature
>    Affects Versions: 1.4
>         Environment: N/A
>            Reporter: Andrew Swan
>         Attachments: MSHADE-91.patch
>
>
> Currently if multiple shaded artifacts contain the same fully-qualified class name, the plugin issues a warning on the console like this:
> {code}[WARNING] We have a duplicate foo.bar.Baz.class in <path-to-jar-in-local-repo>{code}
> In many cases such duplicates are a serious problem, e.g. when they are not the same version of that class.
> It would therefore be useful if the plugin (specifically the DefaultShader class) provided the option of failing the build if any duplicates are detected. This would be particularly useful in a continuous integration environment where there's no human operator to check the console output for warnings.

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