Element root = pomDocument.root();

        // Collect all repository containers to process
        Stream<Element> repositoryContainers = Stream.concat(
                // Root level repositories
                Stream.of(
                                root.child(REPOSITORIES).orElse(null),
                                root.child(PLUGIN_REPOSITORIES).orElse(null))

     */
    public static boolean removeModelVersion(Document document) {
        Element root = document.root();
        if (root == null) {
            return false;
        }

        Element modelVersionElement = root.child(MODEL_VERSION).orElse(null);
        if (modelVersionElement != null) {
            return root.removeNode(modelVersionElement);
        }
        return false;
    }

    /**

            root.attribute("xsi:schemaLocation", newSchemaLocation);
            context.detail("Updated xsi:schemaLocation");
        }
    }

    /**
     * Converts modules to subprojects for 4.1.0 compatibility using domtrip.
     */
    private void convertModulesToSubprojects(Editor editor, UpgradeContext context) {
        Element root = editor.root();
        if (root == null) {
            return;

        Element root = pomDocument.root();

        // Check if this POM has a parent
        Element parentElement = root.child(PARENT).orElse(null);
        if (parentElement == null) {
            return false;
        }

        // Apply limited inference (child groupId/version removal only)
        return trimParentElementLimited(context, root, parentElement);
    }

    /**

        Element root = doc.root();

        // Insert elements with various text content scenarios
        DomUtils.insertContentElement(root, "name", "Test Project Name");
        DomUtils.insertContentElement(root, "description", ""); // Empty content
        DomUtils.insertContentElement(root, "url", null); // Null content
        DomUtils.insertContentElement(root, "inceptionYear", "2023");

            Editor editor = new Editor(updatedDocument);
            Element root = editor.root();
            assertEquals(expectedNamespace, root.namespaceURI(), "Namespace should be updated: " + description);

            Element modelVersionElement = DomUtils.findChildElement(root, "modelVersion");
            if (expectedModelVersion != null) {

     * root.
     *
     * @return the string if operation succeeded, {@code null} if source does not exist.
     * @throws RuntimeException If failed (and not due source not exists).
     */
    @Nonnull
    Optional<String> getString(@Nonnull URI relativeSource, @Nonnull Charset charset);

    /**
     * GETs the source URI content as string using UTF8 charset. The source MUST BE relative from the
     * {@link RemoteRepository#getUrl()} root.

      "https://www.allizom.org/robots.txt",
      "https://tls13.crypto.mozilla.org/",
      "https://tls.ctf.network/robots.txt",
      "https://rustls.jbp.io/",
      "https://h2o.examp1e.net",
      "https://mew.org/",
      "https://tls13.baishancloud.com/",
      "https://tls13.akamai.io/",
      "https://swifttls.org/",
      "https://www.googleapis.com/robots.txt",
      "https://graph.facebook.com/robots.txt",

  @Deprecated
  public final FluentIterable<T> preOrderTraversal(T root) {
    checkNotNull(root);
    return new FluentIterable<T>() {
      @Override
      public UnmodifiableIterator<T> iterator() {
        return preOrderIterator(root);
      }
    };
  }

  UnmodifiableIterator<T> preOrderIterator(T root) {
    return new PreOrderIterator(root);
  }

import okio.Okio;

public class SampleServer extends Dispatcher {
  private final SSLContext sslContext;
  private final String root;
  private final int port;

  public SampleServer(SSLContext sslContext, String root, int port) {
    this.sslContext = sslContext;
    this.root = root;
    this.port = port;
  }

  public void run() throws IOException {
    MockWebServer server = new MockWebServer();