SimpleFooProxy newFoo = context.create(SimpleFooProxy.class);
newFoo.setUserName("a"); // too short
context.returnNullString().to(count);
context.persist().using(newFoo).to(new ThrowingReceiver<Void>(exception1));
context.returnNullString().to(count);
fireContextAndCatch(context, new ThrowingReceiver<Void>(exception2), new ExceptionVerifier() {
@Override
public void verify(Throwable e) {
assertUmbrellaException(e, exception1, exception2);