Verify that filter definitions are properly merged.
  </description>

  <build>
    <filters>
      <filter>src/main/filters/child-a.properties</filter>
      <filter>src/main/filters/child-c.properties</filter>
      <filter>src/main/filters/child-b.properties</filter>
      <filter>src/main/filters/child-d.properties</filter>
    </filters>
  </build>

     * Retrieves the descriptor for the specified plugin from its main artifact.
     *
     * @param plugin The plugin whose descriptor should be retrieved, must not be {@code null}.
     * @param repositories The plugin repositories to use for resolving the plugin's main artifact, must not be {@code
     *            null}.
     * @param session The repository session to use for resolving the plugin's main artifact, must not be {@code null}.

     * @param scope the scope, i.e. usually main or test
     * @param sourceRoot the new source root
     */
    void addCompileSourceRoot(@Nonnull Project project, @Nonnull ProjectScope scope, @Nonnull Path sourceRoot);

    /**
     * Get the list of resources for the given project and scope
     *
     * @param project the project
     * @param scope the scope, i.e. usually main or test
     * @return the list of resources

      <filter>${pom.build.directory}/generated-filters.properties</filter>
    </filters>

    <directory>target</directory>

    <sourceDirectory>src/main/java</sourceDirectory>
    <testSourceDirectory>src/test/java</testSourceDirectory>
    <scriptSourceDirectory>src/main/scripts</scriptSourceDirectory>

    <outputDirectory>${pom.build.directory}/classes</outputDirectory>

            </goals>
            <configuration>
              <version>4.1.0</version>
              <velocityBasedir>${project.basedir}/../../src/mdo</velocityBasedir>
              <models>
                <model>src/main/mdo/maven.mdo</model>
              </models>
              <templates>
                <template>model.vm</template>
              </templates>
              <params>

        <directory>.</directory>
        <includes>
          <include>pom.xml</include>
          <include>src/**</include>
        </includes>
      </resource>
      <resource>
        <directory>src/main/resources</directory>
      </resource>
    </resources>
  </build>

        <enabled>${releasesEnabled}</enabled>
      </releases>
    </repository>
  </repositories>

  <build>
    <resources>
      <resource>
        <directory>src/main/resources</directory>
        <!-- That's the boolean POM field we would like to interpolate -->
        <filtering>${filter.resources}</filtering>
      </resource>
    </resources>
    <plugins>
      <plugin>

        <groupId>org.codehaus.modello</groupId>
        <artifactId>modello-maven-plugin</artifactId>
        <version>1.0-alpha-17</version>
        <configuration>
          <version>1.0.0</version>
          <model>src/main/mdo/metadata.mdo</model>
        </configuration>
        <executions>
          <execution>
            <id>site-docs</id>
            <phase>pre-site</phase>
            <goals>
              <goal>xdoc</goal>

        final ThreadOutputMuxer threadOutputMuxer = new ThreadOutputMuxer(projectBuildList, systemOut);

        final List<String> stringList = Arrays.asList(
                "Thinkin", "of", "a", "master", "plan", "Cuz", "ain’t", "nuthin", "but", "sweat", "inside", "my",
                "hand");
        Iterator<String> lyrics = stringList.iterator();

        ExecutorService executor = Executors.newFixedThreadPool(10);

%{snippet|id=jar|file=${project.basedir}/src/main/java/org/apache/maven/lifecycle/providers/packaging/JarLifecycleMappingProvider.java}

* Plugin bindings for <<<ejb>>> packaging

%{snippet|id=ejb|file=${project.basedir}/src/main/java/org/apache/maven/lifecycle/providers/packaging/EjbLifecycleMappingProvider.java}

* Plugin bindings for <<<maven-plugin>>> packaging