maven-core/src/test/resources-project-builder/profile-module/pom.xml

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>gid</groupId>
  <artifactId>aid</artifactId>
  <version>1.0</version>
  <packaging>pom</packaging>
  <modules>
    <module>module-2</module>
    <module>module-1</module>
    <module>module-3</module>
  </modules>
  <profiles>
    <profile>
      <id>a</id>
      <properties>
        <b>test-prop</b>
      </properties>
      <modules>
        <module>module-1</module>
        <module>module-4</module>
      </modules>
    </profile>
  </profiles>
</project>