class CaselessUnmodifiableMultivaluedMap extends CaselessMultivaluedMap<T> {

    @Override
    public List<T> getList(String key) {
        return Collections.unmodifiableList(super.getList(key));
    }

    public  CaselessUnmodifiableMultivaluedMap();
    public  CaselessUnmodifiableMultivaluedMap(int capacity);
    public  CaselessUnmodifiableMultivaluedMap(Map<String, List<T>> m);

}