public static final String JCIFS_PREFIX = "jcifs.";
            public static final String HTML_CANONICAL_XPATH = "html.canonical.xpath";
            public static final String HTML_PRUNED_TAGS = "html.pruned.tags";
            public static final String PIPELINE = "pipeline";
            public static final String IGNORE_ROBOTS_TAGS = "ignore.robots.tags";

    }

    public void test_getUserAgentType_Chrome() {
        getMockRequest().addHeader("user-agent",
                "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.52 Safari/537.36");
        assertEquals(UserAgentType.CHROME, userAgentHelper.getUserAgentType());
    }

    public void test_getUserAgentType_FireFox() {

    String CRAWLER_DOCUMENT_HTML_CONTENT_XPATH = "crawler.document.html.content.xpath";

    /** The key of the configuration. e.g. //HTML/@lang */
    String CRAWLER_DOCUMENT_HTML_LANG_XPATH = "crawler.document.html.lang.xpath";

    /** The key of the configuration. e.g. //META[@name='description']/@content */
    String CRAWLER_DOCUMENT_HTML_DIGEST_XPATH = "crawler.document.html.digest.xpath";

    return (lastDot < 0) ? "" : classFullName.substring(0, lastDot);
  }

  /**
   * Ensures that the given classes are initialized, as described in <a
   * href="http://java.sun.com/docs/books/jls/third_edition/html/execution.html#12.4.2">JLS Section
   * 12.4.2</a>.
   *
   * <p>WARNING: Normally it's a smell if a class needs to be explicitly initialized, because static

 *   <li><a target="_parent" href="http://www.cymru.com/Bogons/v6bogon.html">http://www.cymru.com/
 *       Bogons/v6bogon.html</a>
 *   <li><a target="_parent" href="http://www.space.net/~gert/RIPE/ipv6-filters.html">http://www.
 *       space.net/~gert/RIPE/ipv6-filters.html</a>
 * </ul>
 *
 * @author Erik Kline
 * @since 5.0
 */
@J2ktIncompatible
@GwtIncompatible

    }
  }

  private static int sqrtFloor(int x) {
    // There is no loss of precision in converting an int to a double, according to
    // http://java.sun.com/docs/books/jls/third_edition/html/conversions.html#5.1.2
    return (int) Math.sqrt(x);
  }

  /**
   * Returns the result of dividing {@code p} by {@code q}, rounding using the specified {@code
   * RoundingMode}.
   *

 * default} methods. Specifically, it forwards calls only for methods that existed <a
 * href="https://docs.oracle.com/javase/7/docs/api/java/util/Iterator.html">before {@code default}
 * methods were introduced</a>. For newer methods, like {@code forEachRemaining}, it inherits their
 * default implementations. When those implementations invoke methods, they invoke methods on the

       * throw NoClassDefFoundError thereafter. This is the proper behavior according to the spec.
       * See https://docs.oracle.com/javase/specs/jls/se8/html/jls-12.html#jls-12.4.2 (steps #11 and
       * #5).
       *
       * Note that that "first time" might happen in a test other than
       * testLexicographicalComparatorChoice!
       */
      return false;
    }

  // From "How Provider Implementations Are Requested and Supplied" from
  // http://docs.oracle.com/javase/6/docs/technotes/guides/security/crypto/CryptoSpec.html
  //  - Some providers may choose to also include alias names.
  //  - For example, the "SHA-1" algorithm might be referred to as "SHA1".
  //  - The algorithm name is not case-sensitive.

  private static final SecretKey SHA512_KEY =
      new SecretKeySpec("secret key".getBytes(UTF_8), "HmacSHA512");

  // From http://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#Mac
  private static final ImmutableTable<String, SecretKey, HashFunction> ALGORITHMS =
      new ImmutableTable.Builder<String, SecretKey, HashFunction>()
          .put("HmacMD5", MD5_KEY, Hashing.hmacMd5(MD5_KEY))