core-it-suite/src/test/resources/mng-0624/optionalVersion/child2/pom.xml

<project>
  <modelVersion>4.0.0</modelVersion>
  <name>mng624 child2</name>
  <groupId>org.apache.maven.its.mng624.opt</groupId>
  <artifactId>child2</artifactId>
  <packaging>pom</packaging>
  <parent>
    <groupId>org.apache.maven.its.mng624.opt</groupId>
    <artifactId>parent</artifactId>
  </parent>
  <modules>
    <module>grandchild</module>
    <module>../grandchild2</module>
  </modules>
</project>