* @param port a port number from [0..65535]
   * @return if parsing was successful, a populated HostAndPort object.
   * @throws IllegalArgumentException if {@code host} contains a port number, or {@code port} is out
   *     of range.
   */
  public static HostAndPort fromParts(String host, int port) {
    checkArgument(isValidPort(port), "Port out of range: %s", port);

  }

  public void testFromStringBadPort() {
    // Out-of-range ports.
    checkFromStringCase("google.com:65536", 1, null, 99, false);
    checkFromStringCase("google.com:9999999999", 1, null, 99, false);
    // Invalid port parts.
    checkFromStringCase("google.com:port", 1, null, 99, false);
    checkFromStringCase("google.com:-25", 1, null, 99, false);

  }

  public void testFromStringBadPort() {
    // Out-of-range ports.
    checkFromStringCase("google.com:65536", 1, null, 99, false);
    checkFromStringCase("google.com:9999999999", 1, null, 99, false);
    // Invalid port parts.
    checkFromStringCase("google.com:port", 1, null, 99, false);
    checkFromStringCase("google.com:-25", 1, null, 99, false);

     */
    // TODO: why is this public?
    public TeredoInfo(
        @CheckForNull Inet4Address server, @CheckForNull Inet4Address client, int port, int flags) {
      checkArgument(
          (port >= 0) && (port <= 0xffff), "port '%s' is out of range (0 <= port <= 0xffff)", port);
      checkArgument(
          (flags >= 0) && (flags <= 0xffff),
          "flags '%s' is out of range (0 <= flags <= 0xffff)",
          flags);

   */
  public static final String X_FORWARDED_HOST = "X-Forwarded-Host";
  /**
   * The HTTP <a href="http://goo.gl/YtV2at">{@code X-Forwarded-Port}</a> header field name.
   *
   * @since 20.0
   */
  public static final String X_FORWARDED_PORT = "X-Forwarded-Port";
  /** The HTTP {@code X-Frame-Options} header field name. */
  public static final String X_FRAME_OPTIONS = "X-Frame-Options";

  private static long fingerprint(byte[] bytes, int length) {
    return HASH_FN.hashBytes(bytes, 0, length).asLong();
  }

  /**
   * Tests that the Java port of FarmHashFingerprint64 provides the same results on buffers up to
   * 800 bytes long as the C++ reference implementation.
   */
  public void testMultipleLengths() {
    int iterations = 800;

   *       2001:db8::1}
   * </ul>
   *
   * @throws IllegalArgumentException if the specifier is not valid.
   */
  public static HostSpecifier fromValid(String specifier) {
    // Verify that no port was specified, and strip optional brackets from
    // IPv6 literals.
    HostAndPort parsedHost = HostAndPort.fromString(specifier);
    Preconditions.checkArgument(!parsedHost.hasPort());
    String host = parsedHost.getHost();

  private static long fingerprint(byte[] bytes, int length) {
    return HASH_FN.hashBytes(bytes, 0, length).asLong();
  }

  /**
   * Tests that the Java port of FarmHashFingerprint64 provides the same results on buffers up to
   * 800 bytes long as the C++ reference implementation.
   */
  public void testMultipleLengths() {
    int iterations = 800;

  private static long fingerprint(byte[] bytes, int length) {
    return HASH_FN.hashBytes(bytes, 0, length).asLong();
  }

  /**
   * Tests that the Java port of Fingerprint2011 provides the same results on buffers up to 800
   * bytes long as the original implementation in C++. See http://cl/106539598
   */
  public void testMultipleLengths() {
    int iterations = 800;

  private static long fingerprint(byte[] bytes, int length) {
    return HASH_FN.hashBytes(bytes, 0, length).asLong();
  }

  /**
   * Tests that the Java port of Fingerprint2011 provides the same results on buffers up to 800
   * bytes long as the original implementation in C++. See http://cl/106539598
   */
  public void testMultipleLengths() {
    int iterations = 800;