@Override
  public @NotNull ZipShort getCentralDirectoryLength() {
    return new ZipShort((mySize != null ? DWORD : 0)
                        + (myCompressedSize != null ? DWORD : 0)
                        + (myHeaderOffset != null ? DWORD : 0));
  }
@Override
  public @NotNull ZipShort getCentralDirectoryLength()