*    intermediate certificates to establish trust from a root certificate to the client's
 *    certificate. The root certificate is not included in this chain.
 *  * The server's handshake certificates must include a set of trusted root certificates. They
 *    will be used to authenticate the client's certificate chain. Typically this is not the same
 *    set of root certificates used in server authentication. Instead it will be a small set of

	root := d.find(path)
	if root == nil || len(root.Children) == 0 {
		return root
	}
	flat := d.flatten(*root)
	return &flat
}

// totalChildrenRec returns the total number of children recorded.
func (d *dataUsageCache) totalChildrenRec(path string) int {
	root := d.find(path)
	if root == nil || len(root.Children) == 0 {
		return 0
	}

    private final Object root;

    /**
     * Construct a new value source, using the supplied object as the root from
     * which to start, and using expressions split at the dot ('.') to navigate
     * the object graph beneath this root.
     * @param root the root of the graph.
     */
    public ObjectBasedValueSource(Object root) {
        super(true);
        this.root = root;
    }

    /**

                SmbTransport trans = null;

                root = root.toLowerCase();

                /* The link entries contain maps of referrals by path representing DFS links.
                 * Note that paths are relative to the root like "\" and not "\example.com\root".
                 */
                CacheEntry links = (CacheEntry) roots.get(root);
                if (links != null && now > links.expiration) {

## **Notable Features**

     */
    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;
    }

    /**

        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))

  @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);
  }

 */
public abstract class ResourceTraversalUtil {

    /**
     * Do not instantiate.
     */
    protected ResourceTraversalUtil() {
    }

    /**
     * Traverses resources contained in the file system.
     *
     * @param rootDir the root directory (must not be {@literal null})
     * @param handler the handler to process resources (must not be {@literal null})
     */

            return path.substring(0, extPos);
        }
        return path;
    }

    /**
     * Returns the root directory where the class file of the specified class is located.
     *
     * @param clazz
     *            The class. Must not be {@literal null}.
     * @return The root directory.
     * @see #getBuildDir(String)
     */
    public static File getBuildDir(final Class<?> clazz) {