[jira] [Created] (MNG-8097) Validate that each dependency->type is a type registered in an artifact handler

["Konrad Windszus (Jira)" <ji...@apache.org>]

Konrad Windszus created MNG-8097:
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             Summary: Validate that each dependency->type is a type registered in an artifact handler
                 Key: MNG-8097
                 URL: https://issues.apache.org/jira/browse/MNG-8097
             Project: Maven
          Issue Type: New Feature
            Reporter: Konrad Windszus


Currently often the dependency's type is being set to the extension and the resolution is lenient, i.e. if there is no artifact handler defining the value given in {{dependency->type}} resolution transparently uses the type as extension.
That can potentially lead to two issues:

1. Resolution might fail with surprising error messages like
{code}
Could not resolve dependencies for project ....: The following artifacts could not be resolved: <gav>: Could not transfer artifact <groupId>:<artifactId>:<unknown-type>:<version> from/to ...
{code}
This is an issue for all types not defined by Maven Core itself, e.g. for https://jackrabbit.apache.org/filevault-package-maven-plugin/index.html which registers an artifact handler for type {{content-package}} with extension {{zip}}.
2. The information {{addedToClasspath}} and {{includesDependencies}} from the artifact handler is not evaluated



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