Fail build on circular dependencies
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Key: MNG-3370
URL: http://jira.codehaus.org/browse/MNG-3370
Project: Maven 2
Issue Type: Improvement
Components: Artifacts and Repositories
Affects Versions: 2.0.8
Reporter: Mark Hobson
Currently circular dependencies are merely logged at debug level and not
generally reported to the user. The general consensus is that circular
dependencies are bad, so I believe that they should be reported as early on as
possible. Previously the repository's low quality metadata was cited as a
reason not to fail the build, but I would have thought such issues should have
been rectified by now.
Ideally we would throw a CyclicDependencyException in DefaultArtifactCollector.
If this is deemed too invasive, then we should at least increase the log level
in DebugResolutionListener to warning.
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