*
     * @return {@code true} if remote access has been disabled, {@code false} otherwise.
     */
    boolean isOffline();

    /**
     * Enables/disables network access to remote repositories.
     *
     * @param offline {@code true} to disable remote access, {@code false} to allow network access.
     * @return This request, never {@code null}.
     */

     *
     * @return {@code true} if remote access has been disabled, {@code false} otherwise.
     */
    boolean isOffline();

    /**
     * Enables/disables network access to remote repositories.
     *
     * @param offline {@code true} to disable remote access, {@code false} to allow network access.
     * @return This request, never {@code null}.
     */

    private List<ArtifactRepository> remoteRepositories;

    /**
     * Creates an empty repository request.
     */
    public DefaultRepositoryRequest() {
        // enables no-arg constructor
    }

    /**
     * Creates a shallow copy of the specified repository request.
     *
     * @param repositoryRequest The repository request to copy from, must not be {@code null}.
     */

     *
     * @return {@code true} if two-phase building is enabled, {@code false} if the model should be build in a single
     *         step.
     */
    boolean isTwoPhaseBuilding();

    /**
     * Enables/disables two-phase building. If enabled, the initial invocation of the model builder will only produce an
     * interim result which may be used to analyze inter-model dependencies before the final invocation of the model

    /**
     * The key for the option to enable tracking of line/column numbers. This option is of type
     * {@link org.apache.maven.model.InputSource} and defaults to {@code null}. Providing an input source enables
     * location tracking.
     */
    String INPUT_SOURCE = "org.apache.maven.model.io.inputSource";

    /**
     * Name of the property used to store the project's root directory to use with
     * XInclude support.

     * management entries in their POMs. Maven 3 targeted full backward compatibility with Maven2, hence it ignored
     * dependency management entries in transitive dependency POMs. Maven 4 enables "transitivity" by default, hence
     * unlike Maven2, obeys dependency management entries deep in dependency graph as well.
     * <br/>
     * Default: <code>"true"</code>.
     *
     * @since 4.0.0
     */

### Configuration cache enabled by default

The build of Gradle enables the configuration cache by default as a dogfooding experiment.

     * <p>This method is used when testing iterators without a known ordering. We poll the target
     * iterator's next element and pass it to the reference iterator through this method so it can
     * return the same element. This enables the assertion to pass and the reference iterator to
     * properly update its state.
     */
    void promoteToNext(E e) {
      if (nextElements.remove(e)) {
        nextElements.push(e);
      } else {

     * <i>Note:</i> This will not automagically make a mojo run when the plugin declaration is added to the POM. It
     * merely enables the user to omit the <code>&lt;phase&gt;</code> element from the surrounding
     * <code>&lt;execution&gt;</code> element.
     */
    private String phase;

     * <p>This method is used when testing iterators without a known ordering. We poll the target
     * iterator's next element and pass it to the reference iterator through this method so it can
     * return the same element. This enables the assertion to pass and the reference iterator to
     * properly update its state.
     */
    void promoteToNext(E e) {
      if (nextElements.remove(e)) {
        nextElements.push(e);
      } else {