* returns a new {@code InternetDomainName} with the value {@code www.bar.foo.com}. Only lenient
   * validation is performed, as described {@link #from(String) here}.
   *
   * @throws NullPointerException if leftParts is null
   * @throws IllegalArgumentException if the resulting name is not valid
   */
  public InternetDomainName child(String leftParts) {

 *
 * <p>The implementation uses an executor service for concurrent processing of file operations and maintains
 * a cache of URLs to be deleted for batch processing. It handles redirect following and child URL discovery
 * during the crawling process.</p>
 */
public class FileListIndexUpdateCallbackImpl implements IndexUpdateCallback {

    /** Logger for this class. */

     *
     * @return the collection of phases in Maven 3 compatible ordering
     */
    default Collection<Phase> v3phases() {
        return phases();
    }

    /**
     * Stream of phases containing all child phases recursively.
     *
     * @return a stream of all phases in this lifecycle, including nested phases
     */
    default Stream<Phase> allPhases() {
        return phases().stream().flatMap(Phase::allPhases);
    }

        ACCESSED,
        /** Indicates that an exception occurred during URL access. */
        ACCESS_EXCEPTION,
        /** Indicates that a child URL was discovered. */
        CHILD_URL,
        /** Indicates that multiple child URLs were discovered. */
        CHILD_URLS,
        /** Indicates that a URL was evaluated for crawling eligibility. */
        EVALUATED,

    /** File write extended attributes access right */
    int FILE_WRITE_EA = 0x00000010; // 5
    /** File execute access right */
    int FILE_EXECUTE = 0x00000020; // 6
    /** File delete child access right */
    int FILE_DELETE = 0x00000040; // 7
    /** File read attributes access right */
    int FILE_READ_ATTRIBUTES = 0x00000080; // 8
    /** File write attributes access right */

severely as to bring tears into her eyes; and once she remembered
trying to box her own ears for having cheated herself in a game
of croquet she was playing against herself, for this curious
child was very fond of pretending to be two people.  `But it's no
use now,' thought poor Alice, `to pretend to be two people!  Why,
there's hardly enough of me left to make ONE respectable
person!'

        buf.append(tag);
        buf.append('>');
    }

    /**
     * Appends the string representation of a {@link NodeList}.
     *
     * @param children
     *            The child nodes. Must not be {@literal null}.
     * @param buf
     *            The string buffer. Must not be {@literal null}.
     */
    public static void appendChildren(final NodeList children, final StringBuilder buf) {

     */
    @Nonnull
    Optional<String> alternatePomFile();

    /**
     * Indicates whether Maven should operate in non-recursive mode (i.e., not build child modules).
     *
     * @return an {@link Optional} containing true if non-recursive mode is enabled, false if disabled, or empty if not specified
     */
    @Nonnull
    Optional<Boolean> nonRecursive();

    /**

            }
        }

        entry.markComplete();
    }

    /**
     * Handle directory change notification
     *
     * @param directoryPath directory path
     * @param childName child file name
     * @param changeType type of change
     */
    public void handleDirectoryChange(String directoryPath, String childName, DirectoryChangeNotifier.DirectoryChangeType changeType) {

```

#### 4.2 Implementation Tasks
- [ ] Extend lease implementation for directories
- [ ] Implement directory metadata caching
- [ ] Add directory change notification integration
- [ ] Create parent-child lease relationships
- [ ] Implement directory lease break handling
- [ ] Add directory enumeration caching

#### 4.3 Integration Points
- Extend `SmbFile` for directory lease support