Allow failing of build if overlapping classes are detected
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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
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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