code: public static int getLastIndexOf (@Nullable final String sText, @Nullable final String sSearch)
    {
      return sText != null && sSearch != null && sText.length () >= sSearch.length () ? sText.lastIndexOf (sSearch)
                                                                                      : STRING_NOT_FOUND;
    }
docs: Get the last index of sSearch within sText.
  
  @param sText
  The text to search in. May be <code>null</code>.
  @param sSearch
  The text to search for. May be <code>null</code>.
  @return The last index of sSearch within sText or {@value #STRING_NOT_FOUND}
  if sSearch was not found or if any parameter was <code>null</code>.
  @see String#lastIndexOf(String)