@Override
  public void checkAttributeRecordSanity(int fileId,
                                         int attributeRecordId) throws IOException {
    //legacy class, soon-to-be-deleted -- not worth the effort
    throw new UnsupportedOperationException("Method not implemented: doesn't worth it");
  }
@Override
  public void checkAttributeRecordSanity(int fileId,
                                         int attributeRecordId)