private static int nextSeparatorIndex(String s, @SuppressWarnings("SameParameterValue") int start) {
    for (int i = start; i < s.length(); i++) {
      char c = s.charAt(i);
      if (PathUtilRt.isSeparator(c)) {
        return i;
      }
    }
    return -1;
  }
private static int nextSeparatorIndex(String s, @SuppressWarnings("SameParameterValue") int start)