private Map<String, Customer> customers = new HashMap<String, Customer>();
@Init
public void init() {
Customer c1 = new Customer();
c1.setId("001");
c1.setName("John Smith");
CreditCard creditCard = new CreditCard();
creditCard.setNumber("1234-5678-1234");
creditCard.setType("Visa");
creditCard.setOwner("John Smith");
creditCard.setExpMonth(6);
creditCard.setExpYear(2015);
c1.setCreditCard(creditCard);
customers.put(c1.getId(), c1);
Customer c2 = new Customer();
c2.setId("002");
c2.setName("Jane Smith");
creditCard = new CreditCard();
creditCard.setNumber("1234-5678-5678");
creditCard.setType("MasterCard");
creditCard.setOwner("Jane Smith");
creditCard.setExpMonth(9);
creditCard.setExpYear(2012);
c2.setCreditCard(creditCard);
customers.put(c2.getId(), c2);
}