code: @Nullable
    public static String getLastToken (@Nullable final String sStr, final char cSearch)
    {
      final int nIndex = getLastIndexOf (sStr, cSearch);
      return nIndex == StringHelper.STRING_NOT_FOUND ? sStr : sStr.substring (nIndex + 1);
    }
docs: Get the last token from (and excluding) the separating character.
  
  @param sStr
  The string to search. May be <code>null</code>.
  @param cSearch
  The search character.
  @return The passed string if no such separator token was found.