raise self.make_not_authenticated_error()
            else:
                return None
        if scheme.lower() != "bearer":
            if self.auto_error:
                raise self.make_not_authenticated_error()
            else:
                return None
        return HTTPAuthorizationCredentials(scheme=scheme, credentials=credentials)


class HTTPDigest(HTTPBase):
    """

        """Initialize STSElement from name and XML string data.

        :param name: Name for XML data. Used in XML errors.
        :param data: string data to be parsed.
        :return: Returns an STSElement.
        """
        try:
            return cls(root_name, cElementTree.fromstring(data))
        except _ETREE_EXCEPTIONS as error:
            raise InvalidXMLError(
                '"{}" XML is not parsable. Message: {}'.format(

     *
     * @return the name server client
     */
    NameServiceClient getNameServiceClient();

    /**
     * Get the buffer cache for efficient memory management
     *
     * @return the buffer cache
     */
    BufferCache getBufferCache();

    /**
     * Get the transport pool for managing SMB connections
     *
     * @return the transport pool
     */

  @Override
  public Hasher newHasher() {
    return newHasher(32);
  }

  @Override
  public Hasher newHasher(int expectedInputSize) {
    Preconditions.checkArgument(expectedInputSize >= 0);
    return new ByteBufferHasher(expectedInputSize);
  }

  @Override
  public HashCode hashInt(int input) {
    return hashBytes(ByteBuffer.allocate(4).order(ByteOrder.LITTLE_ENDIAN).putInt(input).array());

        return this.delegate.isUseLease();
    }

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

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

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

    @Override

    /**
     * Checks if this sitemap set is of type URLSET.
     * @return true if this is a URLSET, false otherwise
     */
    public boolean isUrlSet() {
        return URLSET.equals(type);
    }

    /**
     * Checks if this sitemap set is of type INDEX.
     * @return true if this is an INDEX, false otherwise
     */
    public boolean isIndex() {
        return INDEX.equals(type);
    }

    /**

     * Returns the DCE/RPC error code associated with this exception
     *
     * @return the error code
     */
    public int getErrorCode() {
        return error;
    }

    /**
     * Returns the root cause of this exception
     *
     * @return the root cause throwable
     */
    public Throwable getRootCause() {
        return rootCause;
    }

    @Override
    public String toString() {

        if (configMap == null) {
            return Collections.emptyMap();
        }
        return configMap;
    }

    @Override
    public String getId() {
        return asDocMeta().id();
    }

    public void setId(final String id) {
        asDocMeta().id(id);
    }

    public Long getVersionNo() {
        return asDocMeta().version();
    }

            return this;
        }

        public Builder stdIn(InputStream stdIn) {
            this.stdIn = stdIn;
            return this;
        }

        public Builder stdOut(OutputStream stdOut) {
            this.stdOut = stdOut;
            return this;
        }

        public Builder stdErr(OutputStream stdErr) {
            this.stdErr = stdErr;
            return this;
        }

     */
    @Override
    public boolean isAnonymous() {
        return false;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.NtlmPasswordAuthenticator#isGuest()
     */
    @Override
    public boolean isGuest() {
        return false;
    }

    @Override
    public Kerb5Authenticator clone() {