protected @Nullable E standardPollLast() {
    return Iterators.pollNext(descendingIterator());
  }

  @ParametricNullness
  protected E standardFirst() {
    return iterator().next();
  }

  @ParametricNullness
  protected E standardLast() {
    return descendingIterator().next();
  }

  @Override
  public NavigableSet<E> descendingSet() {
    return delegate().descendingSet();
  }

  /**

     *
     * @return the user code string, or null if no valid session exists
     */
    public String getUserCode() {
        return LaRequestUtil.getOptionalRequest().map(request -> {
            String userCode = (String) request.getAttribute(Constants.USER_CODE);
            if (StringUtil.isNotBlank(userCode)) {
                return userCode;
            }

        if (key != null) {
            return key.clone(); // Return a copy to prevent modification
        }

        // Try to get from SecretKey if available
        SecretKey secretKey = getSessionKey(sessionId);
        if (secretKey != null) {
            return secretKey.getEncoded();
        }

        return null;
    }

    /**
     * Remove and securely wipe a session key
     *

            enc = block;
        }
        return dk;
    }

    /**
     * Performs n-fold expansion of data as specified in RFC 3961.
     * This operation is used in Kerberos key derivation to expand or compress
     * input data to a specific output length.
     *
     * @param data the input data to expand
     * @param outlen the desired output length in bytes
     * @return the n-folded data of the specified length

	if f.t != nil || len(p) == 0 {
		return f.r.Read(p)
	}
	// Read a single byte.
	n, err = f.r.Read(p[:1])
	if n > 0 {
		t := time.Now()
		f.t = &t
	}
	return n, err
}

// Runs the speedtest on local MinIO process.
func selfSpeedTest(ctx context.Context, opts speedTestOpts) (res SpeedTestResult, err error) {
	objAPI := newObjectLayerFn()
	if objAPI == nil {
		return SpeedTestResult{}, errServerNotInitialized
	}

            if (!key.startsWith(SAML_PREFIX)) {
                return;
            }
            params.put("onelogin.saml2." + key.substring(SAML_PREFIX.length()), e.getValue());
        });
        return new SettingsBuilder().fromValues(params).build();
    }

    @Override
    public LoginCredential getLoginCredential() {
        return LaRequestUtil.getOptionalRequest().map(request -> {

    return delegate().offerFirst(e, timeout, unit);
  }

  @Override
  public boolean offerLast(E e, long timeout, TimeUnit unit) throws InterruptedException {
    return delegate().offerLast(e, timeout, unit);
  }

  @Override
  public E takeFirst() throws InterruptedException {
    return delegate().takeFirst();
  }

  @Override

    BALANCED {
      @Override
      Optional<BinaryNode> createTree(int size, Random rng) {
        if (size == 0) {
          return Optional.absent();
        } else {
          int leftChildSize = (size - 1) / 2;
          int rightChildSize = size - 1 - leftChildSize;
          return Optional.of(
              new BinaryNode(
                  rng.nextInt(), createTree(leftChildSize, rng), createTree(rightChildSize, rng)));

        return delegate.equals(that.delegate);
      } else {
        return false;
      }
    }

    @Override
    public int hashCode() {
      return delegate.hashCode();
    }

    @Override
    public String toString() {
      return "another arbitrary string";
    }
  }

     *
     * @param cap the capability flag to check
     * @return whether the transport has the given capability
     * @throws SmbException if an error occurs checking capabilities
     */
    boolean hasCapability(int cap) throws SmbException;

    /**
     * Checks if the transport has been disconnected.
     *
     * @return whether the transport has been disconnected
     */
    boolean isDisconnected();