code: @Nullable
    @CheckReturnValue
    public static String trimLeadingWhitespaces (@Nullable final String s)
    {
      final int n = getLeadingWhitespaceCount (s);
      return n == 0 ? s : s.substring (n, s.length ());
    }
docs: Remove any leading whitespaces from the passed string.
  
  @param s
  the String to be trimmed
  @return the original String with all leading whitespaces removed