public static String trimBoth(final String str) {
    int right = str.length() - 1;
    while (right > 0 && Verifier.isXMLWhitespace(str.charAt(right))) {
      right--;
    }
    int left = 0;
    while (left <= right && Verifier.isXMLWhitespace(str.charAt(left))) {
      left++;
    }
    if (left > right) {
      return "";
    }
    return str.substring(left, right + 1);
  }
public static String trimBoth(final String str)