final Citizen c1 = new Citizen();
c1.setFirstname( "Emmanuel" );
c1.setLastname( "Bernard" );
c1.setSsn( "1234" );
final State france = new State();
france.setName( "Ile de France" );
c1.setState( france );
final Citizen c2 = new Citizen();
c2.setFirstname( "Gavin" );
c2.setLastname( "King" );
c2.setSsn( "000" );
final State australia = new State();
australia.setName( "Australia" );
c2.setState( australia );
withTx(tm, new Callable<Void>() {
@Override
public Void call() throws Exception {