Serializes an int, two arrays of ints, a Locale, an array of Formats and a
    String. Uses default readObject. The array of Formats can be mutated via
    a set method however this method takes care to clone the Formats it is
    given while readObject does not. The two arrays of ints are private and
    can not be mutated directly via the API. The two arrays of ints and the
    int field must also remain in sync. Reading a corrupted stream would
    reduce this class to rubble.