class CaselessUnmodifiableMultivaluedMap extends CaselessMultivaluedMap<T> {

    @Override
    public List<T> put(String key, List<T> value) {
        throw new UnsupportedOperationException("put");
    }

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

}