/**
     * The cached super POM, lazily created.
     */
    private static final Map<String, Model> SUPER_MODELS = new ConcurrentHashMap<>();

    @Inject
    public DefaultSuperPomProvider(ModelProcessor modelProcessor) {
        this.modelProcessor = modelProcessor;
    }

    @Override
    public Model getSuperPom(String version) {

        DefaultProjectScope(String id) {
            super(id);
        }
    }

    private static class DefaultLanguage extends DefaultExtensibleEnum implements Language {

        DefaultLanguage(String id) {
            super(id);
        }
    }

                        throws InterruptedException {
                    setCorePoolSize(parallelism + parked.incrementAndGet());
                    try {
                        return super.invokeAll(tasks);
                    } finally {
                        setCorePoolSize(parallelism + parked.decrementAndGet());
                    }
                }
            };
        }

     * @param e the {@link Exception}
     */
    public SettingsBuilderException(String message, Exception e) {
        super(message, e);
        this.problems = List.of();
    }

    public SettingsBuilderException(String message, List<BuilderProblem> problems) {
        super(message + ": " + problems.stream().map(BuilderProblem::toString).collect(Collectors.joining(", ")), null);
        this.problems = List.copyOf(problems);

     * the list denotes the model on which the model builder was originally invoked. The last identifier will always be
     * an empty string that by definition denotes the super POM.
     *
     * @return The model identifiers from the lineage of models, never {@code null}.
     */
    @Nonnull
    List<String> getModelIds();

    /**
     * Gets the file model.
     *

    // ----------------------------------------------------------------------
    //
    // p1 inherits from p0
    // p0 inherits from super model
    //
    // or we can show it graphically as:
    //
    // p1 ---> p0 --> super model
    //
    // ----------------------------------------------------------------------

    @Test
    void testDependencyManagement() throws Exception {

    // ----------------------------------------------------------------------
    //
    // p1 inherits from p0
    // p0 inherits from super model
    //
    // or we can show it graphically as:
    //
    // p1 ---> p0 --> super model
    //
    // ----------------------------------------------------------------------

    @Test
    void testDependencyManagement() throws Exception {

    // ----------------------------------------------------------------------
    //
    // p1 inherits from p0
    // p0 inherits from super model
    //
    // or we can show it graphically as:
    //
    // p1 ---> p0 --> super model
    //
    // ----------------------------------------------------------------------

    @Test

    /**
     * Gets unique identifier of the model
     *
     * @return The effective identifier of the model, never {@code null}.
     */
    public String id() {
        // if source is null, it is the super model, which can be accessed via empty string
        return source != null ? source.getLocation() : "";
    }

    @Override
    public String toString() {
        return String.valueOf(model);
    }

/**
 * PluginArtifact
 */
public class PluginArtifact extends DefaultArtifact implements ArtifactWithDependencies {
    private Plugin plugin;

    public PluginArtifact(Plugin plugin, Artifact pluginArtifact) {
        super(
                plugin.getGroupId(),
                plugin.getArtifactId(),
                plugin.getVersion(),
                null,
                "maven-plugin",
                null,