core-it-suite/src/test/resources/mng-4357/repo/org/apache/maven/its/mng4357/maven-metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <plugins>
    <plugin>
      <name>Maven Integration Test :: MNG-4357 :: Extension</name>
      <prefix>extension</prefix>
      <artifactId>extension</artifactId>
    </plugin>
  </plugins>
</metadata>