code: public final String escapeHtml(final String pSource) {
      StringBuffer sb = new StringBuffer();
      for (int i = 0; i < pSource.length(); i++) {
        char ch = pSource.charAt(i);
        sb.append(htmlEscape(ch));
      }
      return sb.toString();
    }
docs: <p>Escape HTML character to UTF-8 for given string.</p>
  @param pSource string
  @return String escaped