public static void main(String[] args) {
        long start = System.currentTimeMillis();
        Set<String> sSet = new HashSet<String>();
        sSet.add("Hi,Hello");
        String json = toJSON(sSet);
        System.out.println(json);
        System.out.println(System.currentTimeMillis() - start);
        LinkedList<String> fromJSON = fromJSON(json, LinkedList.class,
                String.class);
        for (String string : fromJSON) {
            System.out.println(string);
        }
    }