public static PomBuilder create() {
        return new PomBuilder();
    }

    public PomBuilder modelVersion(String modelVersion) {
        this.modelVersion = modelVersion;
        return this;
    }

    public PomBuilder namespace(String namespace) {
        this.namespace = namespace;
        return this;
    }

    public PomBuilder groupId(String groupId) {

import org.eclipse.aether.RepositorySystemSession;

/**
 * This interface is not public and the purpose is to allow easy unit testing
 * of {@link ConsumerPomArtifactTransformer}.
 */
interface PomBuilder {
    Model build(RepositorySystemSession session, MavenProject project, ModelSource src)
            throws ModelBuilderException, IOException, XMLStreamException;

    private static final String BUILD_POM_CLASSIFIER = "build";

    private final Set<Path> toDelete = new CopyOnWriteArraySet<>();

    private final PomBuilder builder;

    @Inject
    ConsumerPomArtifactTransformer(PomBuilder builder) {
        this.builder = builder;
    }

    @SuppressWarnings("deprecation")
    @Override

        void shouldUpgradeModelVersionWith41Option() throws Exception {
            // Create a test POM with 4.0.0 model version
            Path pomFile = tempDir.resolve("pom.xml");
            String originalPom = PomBuilder.create()
                    .groupId("com.example")
                    .artifactId("test-project")
                    .version("1.0.0")
                    .build();
            Files.writeString(pomFile, originalPom);

            Path tempDir = Files.createTempDirectory("check-test");
            try {
                Path pomFile = tempDir.resolve("pom.xml");
                String pomContent = PomBuilder.create()
                        .groupId("test")
                        .artifactId("test")
                        .version("1.0.0")
                        .build();

            Path tempDir = Files.createTempDirectory("apply-test");
            try {
                Path pomFile = tempDir.resolve("pom.xml");
                String pomContent = PomBuilder.create()
                        .groupId("test")
                        .artifactId("test")
                        .version("1.0.0")
                        .build();

import org.w3c.dom.Element
import org.w3c.dom.Node
import org.w3c.dom.NodeList

class DomBuilder extends BuilderSupport {
    Document document
    Node parent
    List elements = []

    def DomBuilder(Document document) {
        this.document = document
        this.parent = document
    }

    def DomBuilder(Node parent) {
        this.document = parent.ownerDocument
        this.parent = parent
    }

        DomBuilder builder = new DomBuilder(parent)
        cl.delegate = builder
        cl.call()
        return builder.elements[0]
    }

    public static void leftShift(Node parent, Node node) {
        parent.appendChild(parent.ownerDocument.importNode(node, true))
    }

    public static void addFirst(Node parent, Closure cl) {
        DomBuilder builder = new DomBuilder(parent.ownerDocument, null)