+-----+

 which is transformed into

+-----+
 super model <- m0 <- m1 <- m2
+-----+

+-----+
<project>
 <modelVersion>4.0.0</modelVersion>
 <parent>
   <groupId></groupId>
   <artifactId></artifactId>
   <version></version>
 </parent>
</project>
+-----+

Extending the POM in the future

  In order to anticipate changes in the structure of the POM as new releases of

  <modelVersion>4.0.0</modelVersion>
  <groupId>com.example.group</groupId>
  <artifactId>testinvalidpom</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId></groupId>
          <artifactId>this-is-the-artifact</artifactId>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>

  <groupId>maven-test</groupId>
  <artifactId>t08-a</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <repositories>
    <repository>
      <id>central</id>
      <name>Fake Maven Central Repository</name>
      <url>file://dummy</url>
    </repository>
  </repositories>
  <dependencies>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t08-b</artifactId>
      <version>1.0</version>

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven</groupId>
  <artifactId>p0</artifactId>
  <packaging>pom</packaging>
  <version>1.0</version>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <executions>
          <execution>
            <id>test</id>

            <!--  The key to this test... -->

  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>com.example.group</groupId>
    <artifactId>com-parent</artifactId>
    <version>RELEASE</version>
  </parent>
  <groupId>com.example.group</groupId>
  <artifactId>valid-version-wrong</artifactId>
  <version>1.0</version>

  <description>
    This will test if the validation for the parent version

  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>inheritance</groupId>
    <artifactId>parent</artifactId>
    <version>11-SNAPSHOT</version>
  </parent>

  <artifactId>inheritance</artifactId><!-- same as directory name -->
  <name>Model urls inheritance test child</name>

  <scm>

     * @param artifactId The artifact id of the cache record, must not be {@code null}.
     * @param version The version of the cache record, must not be {@code null}.
     * @param tag The tag of the cache record, must not be {@code null}.
     * @param data The data to store in the cache, must not be {@code null}.
     */
    void put(String groupId, String artifactId, String version, String tag, Object data);

    /**

  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>com.example.group</groupId>
    <artifactId>com-parent</artifactId>
    <version>LATEST</version>
  </parent>
  <groupId>com.example.group</groupId>
  <artifactId>valid-version-wrong</artifactId>
  <version>1.0</version>

  <description>
    This will test if the validation for the parent version

  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>org.apache.maven.validation</groupId>
    <artifactId>parent</artifactId>
    <version>1</version>
  </parent>

  <groupId>org.apache.maven.validation</groupId>
  <artifactId>project</artifactId>
  <version>1.0.0-SNAPSHOT</version>

  <properties>
    <x>just/some/path</x>
  </properties>

  <repositories>
    <repository>

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-test</groupId>
  <artifactId>t04-b</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>