docs: private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
          GetField fields = in.readFields();
          authMethod = (String) fields.get(AUTH_METHOD, null);
          accessId = (String) fields.get(ACCESS_ID, null);
          securityName = (String) fields.get(SECURITY_NAME, null);
          hash = (toString() + accessId).hashCode();
      }