errorException: IOException?,
  ) {
    if (!closeInternal(rstStatusCode, errorException)) {
      return // Already closed.
    }
    connection.writeSynReset(id, rstStatusCode)
  }

  /**
   * Abnormally terminate this stream. This enqueues a `RST_STREAM` frame and returns immediately.
   */
  fun closeLater(errorCode: ErrorCode) {
    if (!closeInternal(errorCode, null)) {
      return // Already closed.
    }

        cloneInternal(auth, this);
        return auth;
    }


    /**
     * Clone the context
     * 
     * @param to
     * @param from
     */
    public static void cloneInternal ( Kerb5Authenticator to, Kerb5Authenticator from ) {
        NtlmPasswordAuthenticator.cloneInternal(to, from);
        to.setUser(from.getUser());

    }


    @Override
    public NtlmPasswordAuthenticator clone () {
        NtlmPasswordAuthenticator cloned = new NtlmPasswordAuthenticator();
        cloneInternal(cloned, this);
        return cloned;
    }


    protected static void cloneInternal ( NtlmPasswordAuthenticator cloned, NtlmPasswordAuthenticator toClone ) {
        cloned.domain = toClone.domain;
        cloned.username = toClone.username;

        @Override
        public Kerb5Authenticator clone () {
            Kerb5Authenticator auth = new RefreshableKerb5Authenticator(getSubject(), getUserDomain(), getUser(), getPassword());
            cloneInternal(auth, this);
            return auth;
        }
    }