int result = 17;
        result = 31 * result + a.getGroupId().hashCode();
        result = 31 * result + a.getArtifactId().hashCode();
        result = 31 * result + a.getType().hashCode();
        if (a.getVersion() != null) {
            result = 31 * result + a.getVersion().hashCode();
        }
        result = 31 * result + (a.getClassifier() != null ? a.getClassifier().hashCode() : 0);

        boolean reverse = false;
        final boolean result;
        if (test.startsWith(REGEX_PREFIX)) {
            result = actualVersion.matches(test.substring(REGEX_PREFIX.length()));
        } else {
            if (test.startsWith("!")) {
                reverse = true;
                test = test.substring(1);
            }
            result = actualVersion.equals(test);
        }

    }

    @Override
    public int hashCode() {
        int result = 13;

        if (lowerBound == null) {
            result += 1;
        } else {
            result += lowerBound.hashCode();
        }

        result *= lowerBoundInclusive ? 1 : 2;

        if (upperBound == null) {
            result -= 3;
        } else {
            result -= upperBound.hashCode();
        }

        File file = new File(getRepository().getBasedir(), path);

        LocalArtifactResult result = new LocalArtifactResult(request);
        if (file.isFile()) {
            result.setFile(file);
            result.setAvailable(true);
        }

        return result;
    }

    public LocalMetadataResult find(RepositorySystemSession session, LocalMetadataRequest request) {

 */
public class ArtifactDescriptorReaderDelegate {
    public void populateResult(InternalSession session, ArtifactDescriptorResult result, Model model) {
        ArtifactTypeRegistry stereotypes = session.getSession().getArtifactTypeRegistry();

        for (Repository r : model.getRepositories()) {
            result.addRepository(session.toRepository(
                    session.getService(RepositoryFactory.class).createRemote(r)));
        }

        for (ProjectBuildingResult result : results) {
            projects.add(result.getProject());

            if (!result.getProblems().isEmpty() && LOGGER.isWarnEnabled()) {
                LOGGER.warn("");
                LOGGER.warn(
                        "Some problems were encountered while building the effective model for '{}'",
                        result.getProject().getId());

        DefaultModelBuilderResult result = new DefaultModelBuilderResult();

        DefaultModelProblemCollector problems = new DefaultModelProblemCollector(result);

        // read and validate raw model
        Model fileModel = readFileModel(request, problems);
        result.setFileModel(fileModel);

        Model activatedFileModel = activateFileModel(fileModel, request, result, problems);

            List<ExecutionPlanItem> planItems) {
        LinkedHashSet<String> result = new LinkedHashSet<>();
        for (ExecutionPlanItem executionPlanItem : planItems) {
            result.add(executionPlanItem.getLifecyclePhase());
        }
        return result;
    }

    public List<MojoExecution> getMojoExecutions() {
        List<MojoExecution> result = new ArrayList<>();

     *
     * @param session The session, never {@code null}.
     * @param result The artifact descriptor result, never {@code null}.
     * @param model The artifact model, never {@code null}.
     * @return The {@link Artifact} to relocate to, or {@code null} if no relocation wanted.
     */
    Artifact relocatedTarget(RepositorySystemSession session, ArtifactDescriptorResult result, Model model)
            throws ArtifactDescriptorException;

        ArrayList<Artifact> result = new ArrayList<>(2);
        result.add(session.getArtifact(pomArtifact));
        if (!ArtifactIdUtils.equalsVersionlessId(pomArtifact, projectArtifact)) {
            result.add(session.getArtifact(projectArtifact));
        }
        return Collections.unmodifiableList(result);
    }

    @Nonnull
    @Override
    public Packaging getPackaging() {