/**
     * does this Mojo need to be online to be executed?
     * @return need to be online
     */
    boolean onlineRequired() default false;

    /**
     * TODO: v4: add a SPI for the configurator
     * configurator bean name.
     * @return the configurator bean name
     */
    @Nonnull
    String configurator() default "";

                    selected = type;
                } else if (unknown) {
                    // More than one filtered value, and we don't know how to handle at least one of them.
                    // TODO: add a plugin mechanism for allowing plugin to specify their selection algorithm.
                    return Optional.empty();
                }
            }
        }
        if (classes & modules) {

     */
    protected ArtifactTypeRegistry getArtifactTypeRegistry() {
        DefaultArtifactTypeRegistry stereotypes = new DefaultArtifactTypeRegistry();
        new DefaultTypeProvider().types().forEach(stereotypes::add);
        return stereotypes;
    }

    protected ArtifactDescriptorPolicy getArtifactDescriptorPolicy() {
        return new SimpleArtifactDescriptorPolicy(true, true);
    }

            String version = model.getVersion();

            dependencyManagement
                    .getDependencies()
                    .forEach((dependency) -> dependencies.add(dependency.withVersion(version)));
            Model.Builder builder = prune(
                    Model.newBuilder(model, true)
                            .preserveModelVersion(false)
                            .root(false)

    public void add(BuilderProblem.Severity severity, ModelProblem.Version version, String message) {
        add(severity, version, message, null, null);
    }

    @Override
    public void add(
            BuilderProblem.Severity severity, ModelProblem.Version version, String message, InputLocation location) {
        add(severity, version, message, location, null);
    }

    @Override
    public void add(

            plugins = new LinkedHashSet<>();

            plugins.add(newPlugin("maven-compiler-plugin", "compile", "testCompile"));
            plugins.add(newPlugin("maven-resources-plugin", "resources", "testResources"));
            plugins.add(newPlugin("maven-surefire-plugin", "test"));
            plugins.add(newPlugin("maven-jar-plugin", "jar"));
            plugins.add(newPlugin("maven-install-plugin", "install"));

            details.add("scope updated from " + originalScope);
        }

        if (!included) {
            if (Objects.equals(winnerVersion, node.getArtifact().getVersion())) {
                details.add("omitted for duplicate");
            } else {
                details.add("omitted for conflict with " + winnerVersion);
            }
        }

            projects.add(project);
            if (includeModules) {
                for (String module : project.getModules()) {
                    File modulePom = new File(pom.getParentFile(), module);
                    if (modulePom.isDirectory()) {
                        modulePom = new File(modulePom, "pom.xml");
                    }

                Server server = servers.get(i);

                validateStringNotEmpty(problems, "servers.server[" + i + "].id", server.getId(), null);

                if (!serverIds.add(server.getId())) {
                    addViolation(
                            problems,
                            BuilderProblem.Severity.WARNING,
                            "servers.server.id",

            for (int i = 0, n = tgt.size(); i < n; i++) {
                indices.add(i);
            }
            for (int i = 0, n = src.size(); i < n; i++) {
                String s = src.get(i);
                if (!excludes.contains(s)) {
                    merged.add(s);
                    indices.add(~i);
                }
            }
            builder.modules(merged);