* @return The global settings file or {@code null} if none.
     */
    File getGlobalSettingsFile();

    /**
     * Sets the global settings file. A non-existent settings file is equivalent to empty settings. If both user
     * settings and global settings are given, the user settings take precedence.
     *
     * @param globalSettingsFile The global settings file, may be {@code null} to disable global settings.

     * Gets the global toolchains source.
     *
     * @return The global toolchains source or {@code null} if none.
     */
    Source getGlobalToolchainsSource();

    /**
     * Sets the global toolchains source. If both user toolchains and a global toolchains are given, the user toolchains
     * take precedence.
     *
     * @param globalToolchainsSource The global toolchains source, may be {@code null} to disable global toolchains.

  at the same time avoiding introducing required plexus dependencies into the
  mojo development model.

  In order to really achieve this, we need mojo configurations (which are
  provided both in terms of static expressions that are just looked up, and
  in terms of user-provided configuration from properties or the POM).
  If these mojos are to be first-class components, the configuration from these

 *
 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
 *
 * @since 3.0
 */
public final class TaskSegment {

    // Can be both "LifeCycleTask" (clean/install) and "GoalTask" (org.mortbay.jetty:maven-jetty-plugin:6.1.19:run)

    private final List<Task> tasks;

    private final boolean aggregating;

    public TaskSegment(boolean aggregating) {

/**
 * A type implemented by, or extended by maven itself.
 * Maven provides implementations of those types and may inject them in plugins.
 * <p>
 * A type can be marked {@link Consumer} or {@link Provider} but not both. A type is assumed to be
 * {@link Consumer} if it is not marked either {@link Consumer} or {@link Provider}.
 * <p>
 * A package can be marked {@link Provider}. In this case, all types in the package are considered

     * This method does not handle the patch-module paths, because the patches
     * depend on which modules have been previously added on the module-paths.
     *
     * <p>If the dependency can be a constituent of both the class-path and the module-path,
     * then the path type is determined by checking if the dependency is modular.</p>
     *
     * @param types types of path where a dependency can be placed

       where you replace `MNG-XXX` and `SUMMARY` with the appropriate JIRA issue.
 - [ ] Also format the first line of the commit message like `[MNG-XXX] SUMMARY`.
       Best practice is to use the JIRA issue title in both the pull request title and in the first line of the commit message.
 - [ ] Write a pull request description that is detailed enough to understand what the pull request does, how, and why.

 * Maven plugins or extensions may provide implementations of those types which will be used by maven.
 * <p>
 * A type can be marked {@link Consumer} or {@link Provider} but not both. A type is assumed to be
 * {@link Consumer} if it is not marked either {@link Consumer} or {@link Provider}.
 * <p>
 * A package can be marked {@link Consumer}. In this case, all types in the package are considered

    private static boolean objectsEqual(Object o1, Object o2) {
        if (o1 == null && o2 == null) {
            return true;
        }
        if (o1 == null || o2 == null) {
            return false; // as they are not both null
        }
        return o1.equals(o2);
    }

    // ----------------------------------------------------------------------------
    /**
     * used to eliminate exact duplicates in the edge list
     */

    A depends on property B, and property B depends on property C and so on.
  </description>

  <properties>
    <!--
    NOTE: Both the ordering (i.e. neither ascending nor descending) and the number of properties is crucial to
    exhibit the bug.
    -->
    <property23>${property22}</property23>
    <property21>${property20}</property21>