*
     * @return true if refresh needed
     */
    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;

  abstract ValueGraph<N, V> delegate();

  @Override
  public Set<N> nodes() {
    return delegate().nodes();
  }

  /**
   * Defer to {@link AbstractValueGraph#edges()} (based on {@link #successors(Object)}) for full
   * edges() implementation.
   */
  @Override
  protected long edgeCount() {
    return delegate().edges().size();
  }

  @Override
  public boolean isDirected() {
    return delegate().isDirected();

    private long alloc; // Also handles SmbQueryFSSizeInfo
    private long free;
    private int sectPerAlloc;
    private int bytesPerSect;

    /**
     * Default constructor for decoding file system full size information.
     */
    public FileFsFullSizeInformation() {
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.fscc.FileSystemInformation#getFileSystemInformationClass()
     */

        super(formatMessage(errorCode, message), cause);
        this.errorCode = errorCode;
        this.originalMessage = message;
        this.retryPolicy = retryPolicy != null ? retryPolicy : RetryPolicy.DEFAULT;
        this.context = context != null ? new HashMap<>(context) : new HashMap<>();
        this.operationStartTime = System.currentTimeMillis();
        this.operationName = extractOperationName();
        this.attemptNumber = 1;

    /**
     * File information class for basic directory information.
     */
    public static final byte FILE_DIRECTORY_INFO = 0x1;

    /**
     * File information class for full directory information.
     */
    public static final byte FILE_FULL_DIRECTORY_INFO = 0x2;

    /**
     * File information class for both names directory information.
     */

  abstract ValueGraph<N, V> delegate();

  @Override
  public Set<N> nodes() {
    return delegate().nodes();
  }

  /**
   * Defer to {@link AbstractValueGraph#edges()} (based on {@link #successors(Object)}) for full
   * edges() implementation.
   */
  @Override
  protected long edgeCount() {
    return delegate().edges().size();
  }

  @Override
  public boolean isDirected() {
    return delegate().isDirected();

        @DisplayName("Should handle null buffer in read operations")
        void testReadOperationsWithNullBuffer() {
            // Read operations return 0 when given null buffer - no exceptions thrown
            assertEquals(0, response.readSetupWireFormat(null, 0, 0));
            assertEquals(0, response.readParametersWireFormat(null, 0, 0));

            // readDataWireFormat will throw when accessing null buffer

   *   public boolean isDone() {
   *     return ref.get() == null;
   *   }
   * });
   * }
   *
   * @throws RuntimeException if timed out or interrupted while waiting
   */
  public static void awaitClear(WeakReference<?> ref) {
    awaitDone(() -> ref.get() == null);
  }

  /**
   * Tries to perform a "full" garbage collection cycle (including processing of weak references and

     * SMB information allocation constant.
     */
    byte SMB_INFO_ALLOCATION = -1;

    /**
     * File system size information constant.
     */
    byte FS_SIZE_INFO = 3;
    /**
     * File system full size information constant.
     */
    byte FS_FULL_SIZE_INFO = 7;

    /**
     * Gets the file system information class.
     *
     * @return file system information class
     */

        append(request.url)
      } else {
        append(requestPath(request.url))
      }
      append(" HTTP/1.1")
    }

  /**
   * Returns true if the request line should contain the full URL with host and port (like "GET
   * http://android.com/foo HTTP/1.1") or only the path (like "GET /foo HTTP/1.1").
   */
  private fun includeAuthorityInRequestLine(
    request: Request,
    proxyType: Proxy.Type,