common/m2/repository/org/apache/apache/maven-metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.apache</groupId>
  <artifactId>apache</artifactId>
  <versioning>
    <release>13</release>
    <versions>
      <version>16</version>
      <version>4</version>
      <version>9</version>
      <version>13</version>
    </versions>
    <lastUpdated>20180503103331</lastUpdated>
  </versioning>
</metadata>