elharo opened a new issue, #1535:
URL: https://github.com/apache/maven-dependency-plugin/issues/1535
### Affected version
HEAD
### Bug description
```
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
<version>2.2</version>
<scope>test</scope>
</dependency>
```
This one's an ugly mess. It has a purpose when present to avoid introducing
a transitive dependency on hamcrest-core 1.3, which can happen with JUnit 4.
However, it's just a shim that contains no classes and depends on hamcrest.
This creates one of the ugly unused when included and needed when not
included warning Catch-22s.
In any case we should never report hamcrest-core 2.2 as unused. It contains
nothing, causes no problems, and prevents other problems even though it
contributes exactly zero classes to the classpath.
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