}
        }
        if ( rpc == null ) {
            return false;
        }

        boolean valid = false;
        for ( int hash : rpc.getHashAlgos() ) {
            if ( hash == pc.getHashAlgos()[ 0 ] ) {
                valid = true;
            }
        }
        if ( !valid ) {
            log.error("Server returned invalid hash selection");
            return false;
        }

  /**
   * Validation method used by {@code from} to ensure that the domain name is syntactically valid
   * according to RFC 1035.
   *
   * @return Is the domain name syntactically valid?
   */
  private static boolean validateSyntax(List<String> parts) {
    int lastIndex = parts.size() - 1;

    // Validate the last part specially, as it has different syntax rules.

    if (!validatePart(parts.get(lastIndex), true)) {

   *
   * @param bytes byte array representing an IPv4 address (should be of length 4)
   * @return {@link Inet4Address} corresponding to the supplied byte array
   * @throws IllegalArgumentException if a valid {@link Inet4Address} can not be created
   */
  private static Inet4Address getInet4Address(byte[] bytes) {
    checkArgument(
        bytes.length == 4,

    assertEquals("abc", Strings.commonPrefix(new StringBuffer("abcdef"), "abcxyz"));

    // Identical valid surrogate pairs.
    assertEquals(
        "abc\uD8AB\uDCAB", Strings.commonPrefix("abc\uD8AB\uDCABdef", "abc\uD8AB\uDCABxyz"));
    // Differing valid surrogate pairs.
    assertEquals("abc", Strings.commonPrefix("abc\uD8AB\uDCABdef", "abc\uD8AB\uDCACxyz"));
    // One invalid pair.

   * on the deserialized instance.
   *
   * <p>When the underlying delegate throws an exception then this memoizing supplier will keep
   * delegating calls until it returns valid data.
   *
   * <p>If {@code delegate} is an instance created by an earlier call to {@code memoize}, it is
   * returned directly.
   */

   *
   * <p><b>Java 8+ users:</b> use {@link Long#parseUnsignedLong(String)} instead.
   *
   * @throws NumberFormatException if the string does not contain a valid unsigned {@code long}
   *     value
   * @throws NullPointerException if {@code string} is null (in contrast to {@link
   *     Long#parseLong(String)})
   */
  @CanIgnoreReturnValue

        if (recommendedVersion != null) {
            version = recommendedVersion;
        } else {
            if (restrictions.size() == 0) {
                throw new OverConstrainedVersionException("The artifact has no valid ranges", artifact);
            }

            version = null;
        }
        return version;
    }

    public boolean isSelectedVersionKnown(Artifact artifact) throws OverConstrainedVersionException {

                            BuilderProblem.Severity.ERROR,
                            "pluginGroups.pluginGroup[" + i + "]",
                            null,
                            "must denote a valid group id and match the pattern " + ID);
                }
            }
        }

        List<Server> servers = settings.getServers();

        if (servers != null) {

   *
   * <p><b>Java 8+ users:</b> use {@link Long#parseUnsignedLong(String)} instead.
   *
   * @throws NumberFormatException if the string does not contain a valid unsigned {@code long}
   *     value
   * @throws NullPointerException if {@code string} is null (in contrast to {@link
   *     Long#parseLong(String)})
   */
  @CanIgnoreReturnValue

   *
   * @param bytes byte array representing an IPv4 address (should be of length 4)
   * @return {@link Inet4Address} corresponding to the supplied byte array
   * @throws IllegalArgumentException if a valid {@link Inet4Address} can not be created
   */
  private static Inet4Address getInet4Address(byte[] bytes) {
    checkArgument(
        bytes.length == 4,