/**
     * Shortcut for {@code getService(DependencyResolver.class).flatten(...)}.
     *
     * @param node node for which to get a flattened list
     * @param scope build path scope (main compile, test compile, etc.) of desired nodes
     * @return flattened list of node with the given build path scope
     * @throws org.apache.maven.api.services.DependencyResolverException if the dependency flattening failed
     *

        Node root = session.collectDependencies(artifact);
        assertNotNull(root);

        DependencyResolverResult result =
                session.getService(DependencyResolver.class).resolve(session, project, PathScope.MAIN_RUNTIME);
        assertNotNull(result);
        List<Dependency> deps = new ArrayList<>(result.getDependencies().keySet());
        List<Dependency> deps2 = result.getNodes().stream()
                .map(Node::getDependency)

                Stream.concat(
                        // pom artifact
                        Stream.of(new ProjectArtifact(project)),
                        // main project artifact if not a pom
                        "pom".equals(project.getPackaging()) ? Stream.empty() : Stream.of(project.getArtifact())),
                // attached artifacts

    }

    @Override
    public int hashCode() {
        return items.hashCode();
    }

    // CHECKSTYLE_OFF: LineLength

    /**
     * Main to test version parsing and comparison.
     * <p>
     * To check how "1.2.7" compares to "1.2-SNAPSHOT", for example, you can issue

     * one specific module. Used for compilation and execution among others.
     *
     * <p><b>Context-sensitive interpretation:</b>
     * This path type makes sense only when a main module is added on the module-path by another dependency.
     * In no main module is found, the patch dependency may be added on the class-path or module-path
     * depending on whether {@link #CLASSES} or {@link #MODULES} is present.
     * </p>
     *

     */
    void addOutputDirectory(Path main, Path test, PathModularizationCache cache) throws IOException {
        if (outputModules != null) {
            throw new IllegalStateException("Output directories must be set first and only once.");
        }
        if (main != null) {
            outputModules = cache.getModuleInfo(main);
            addPathElement(outputModules.getPathType(), main);
        } else {

     */
    void addOutputDirectory(Path main, Path test, PathModularizationCache cache) throws IOException {
        if (outputModules != null) {
            throw new IllegalStateException("Output directories must be set first and only once.");
        }
        if (main != null) {
            outputModules = cache.getModuleInfo(main);
            addPathElement(outputModules.getPathType(), main);
        } else {

        assertEquals(
                "src/main/mdo/remote-resources.mdo",
                new MojoExecutionXPathContainer(executions.get(1)).getValue("configuration/models[1]/model"));
        assertEquals(
                "src/main/mdo/supplemental-model.mdo",
                new MojoExecutionXPathContainer(executions.get(4)).getValue("configuration/models[1]/model"));