Showcase how the Account entity has been changed including added and removed attributes

Main.java

// Fetch an account.  Notice that the id is now a long rather than an integer.
Account account = (Account)persistenceManager.findById(Account.class, 1l);
assert account.getAccountId() == 1l;

// The Account Name is a new field and is now persistable.
// This demonstrates that we can now take
// advantage of the new field.
account.setAccountName("Utility Bill");
persistenceManager.saveEntity(account);

// Verify it was indeed persisted
account = (Account)persistenceManager.findById(Account.class, 1l);
assert account.getAccountName().equals("Utility Bill");