entry.updateChild("file1.txt", 1024L, 1000L, false, 0x20, 500L, 800L);
        entry.updateChild("file2.txt", 2048L, 2000L, false, 0x20, 600L, 900L);
        entry.markComplete();

        // Test FILE_ADDED - should invalidate cache
        directoryLeaseManager.handleDirectoryChange(directoryPath, "file3.txt", DirectoryChangeNotifier.DirectoryChangeType.FILE_ADDED);

        return System.currentTimeMillis() - lastUpdateTime > maxAge;
    }
    
    public boolean needsRefresh() {
        return isExpired() || hasChanges;
    }
    
    public void markComplete() {
        lock.writeLock().lock();
        try {
            this.isComplete = true;
            this.hasChanges = false;
            this.lastUpdateTime = System.currentTimeMillis();
        } finally {

     */
    public boolean needsRefresh() {
        return isExpired() || hasChanges;
    }

    /**
     * Mark the cache as complete (full enumeration cached)
     */
    public void markComplete() {
        lock.writeLock().lock();
        try {
            this.isComplete = true;
            this.hasChanges = false;
            this.lastUpdateTime = System.currentTimeMillis();
        } finally {

            } catch (Exception e) {
                log.debug("Error updating cache entry for {}: {}", file.getName(), e.getMessage());
            }
        }

        entry.markComplete();
    }

    /**
     * Handle directory change notification
     *
     * @param directoryPath directory path
     * @param childName child file name
     * @param changeType type of change