SimpleProblemCollector problems = new SimpleProblemCollector();
        validator.validate(settings, problems);
        assertEquals(4, problems.messages.size());
        assertContains(problems.messages.get(0), "'mirrors.mirror.id' must not be 'local'");
        assertContains(problems.messages.get(1), "'mirrors.mirror.url' for local is missing");

        }

        // don't pull in the transitive deps of a system-scoped dependency.
        if (node.isActive() && !Artifact.SCOPE_SYSTEM.equals(node.getArtifact().getScope())) {
            fireEvent(ResolutionListener.PROCESS_CHILDREN, listeners, node);

            Artifact parentArtifact = node.getArtifact();

            for (Iterator<ResolutionNode> i = node.getChildrenIterator(); i.hasNext(); ) {

     * @param problems The problems that were encountered, may be {@code null}.
     */
    DefaultProjectBuildingResult(String projectId, File pomFile, List<ModelProblem> problems) {
        this.projectId = (projectId != null) ? projectId : "";
        this.pomFile = pomFile;
        this.project = null;
        this.problems = problems != null ? problems : Collections.emptyList();

     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    default void validateFileModel(Model model, ModelBuilderRequest request, ModelProblemCollector problems) {
        // do nothing
    }

    /**

            restrictions.add(restriction);
            upperBound = restriction.getUpperBound();

            process = process.substring(index + 1).trim();

            if (process.startsWith(",")) {
                process = process.substring(1).trim();
            }
        }

        if (!process.isEmpty()) {
            if (!restrictions.isEmpty()) {
                throw new InvalidVersionSpecificationException(

    public static final MojoDescriptor TEST_COMPILE = createMojoDescriptor("test-compile");

    public static final MojoDescriptor PROCESS_TEST_RESOURCES = createMojoDescriptor("process-test-resources");

    public static final MojoDescriptor PROCESS_RESOURCES = createMojoDescriptor("process-resources");

    public static final MojoDescriptor COMPILE = createMojoDescriptor("compile", true);

     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    Model injectManagement(Model model, ModelBuilderRequest request, ModelProblemCollector problems);

     * This method is used to initialize the TransformerContext
     *
     * @param request the modelBuildingRequest
     * @param problems the problemCollector
     * @return the mutable transformerContext
     */
    ModelTransformerContext initialize(ModelBuilderRequest request, ModelProblemCollector problems);

    /**
     * The immutable transformerContext, can be used after the buildplan is finished.
     *

     *         {@link ProjectBuildingException}.
     */
    MavenProject getProject();

    /**
     * Gets the problems that were encountered during the project building.
     *
     * @return The problems that were encountered during the project building, can be empty but never {@code null}.
     */
    List<ModelProblem> getProblems();

    /**

    @SuppressWarnings("checkstyle:linelength")
    private static final String[] BINDINGS = {
        "process-resources",
                "org.apache.maven.plugins:maven-resources-plugin:" + RESOURCES_PLUGIN_VERSION + ":resources",
        "compile", "org.apache.maven.plugins:maven-compiler-plugin:" + COMPILER_PLUGIN_VERSION + ":compile",
        "process-test-resources",