private static void appendWord(StringBuffer resultingWords, String propertyWord) {
    if (!resultingWords.isEmpty()) {
      final char lastChar = resultingWords.charAt(resultingWords.length() - 1);
      if (Character.isLetterOrDigit(lastChar)) {
        propertyWord = StringUtil.capitalize(propertyWord);
      }
    }
    resultingWords.append(propertyWord);
  }
private static void appendWord(StringBuffer resultingWords, String propertyWord)