Fail on duplicate modules on the module path #172
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When resolving the module path, no module id is allowed to exist multiple times. The location manager used to drop duplicates silently which led to hard to understand error messages when a plugin using plexus-java dropped a dependency without any notice. This change enforces uniqueness of module names on the module path and will add an exception to the PathResolveResult in that case.
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@rfscholte plz review (I can't actually request a reviewer) |
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I will close #164 once this PR has been merged |
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I'm glad to see that we came to this solution. Technically it is probably not an illegal argument exception, but I can't think of a better solution and this might help to ensure module names are unique on the module path. |
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When resolving the module path, no module name is allowed to exist
multiple times.
The location manager used to drop duplicates silently which led to
hard to understand error messages when a plugin using plexus-java
dropped a dependency without any notice.
This change enforces uniqueness of module names on the module path
and will add an exception to the PathResolveResult in that case.