public static synchronized HashMap<String, Integer> getUserStock(String uid) {
    	UserStorageAccess xmlAccessor = new UserStorageAccess();
    	stocks = xmlAccessor.getUserStocks(uid);
    	//System.out.println("size of Hashmap : " + stocks.size());
    	//System.out.println(stocks.containsKey("CCR"));
        return stocks;
    }