Set<ConstraintViolation<ExtendedTestBean>> violations = validator.validate(bean);
        assertEquals(2, violations.size());
    }

    // Test multiple annotations on same field
    public void test_multipleValidations() {
        MultiValidationBean bean = new MultiValidationBean();
        bean.setRequiredCron(null); // Violates NotNull

        Set<ConstraintViolation<MultiValidationBean>> violations = validator.validate(bean);