* @throws IllegalArgumentException if the given key is inappropriate for initializing this MAC
   * @since 20.0
   */
  public static HashFunction hmacMd5(Key key) {
    return new MacHashFunction("HmacMD5", key, hmacToString("hmacMd5", key));
  }

  /**
   * Returns a hash function implementing the Message Authentication Code (MAC) algorithm, using the

   * @throws IllegalArgumentException if the given key is inappropriate for initializing this MAC
   * @since 20.0
   */
  public static HashFunction hmacMd5(Key key) {
    return new MacHashFunction("HmacMD5", key, hmacToString("hmacMd5", key));
  }

  /**
   * Returns a hash function implementing the Message Authentication Code (MAC) algorithm, using the

    /**
     * <code>line.separator</code> system property. For example, on Mac OS X: <code>"\n"</code>
     */
    public static final String LINE_SEPARATOR = System.getProperty("line.separator");

    /**
     * <code>path.separator</code> system property. For example, on Mac OS X: <code>":"</code>
     */
    public static final String PATH_SEPARATOR = System.getProperty("path.separator");

    }

    public void test_getUserAgentType_Safari() {
        getMockRequest().addHeader("user-agent",
                "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/600.8.9 (KHTML, like Gecko) Version/8.0.8 Safari/600.8.9");
        assertEquals(UserAgentType.SAFARI, userAgentHelper.getUserAgentType());
    }

    public void test_getUserAgentType_Opera() {

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