* Validate with implicit default group.
* Expecting no issue because value is not null. However, the value is too short but will not be thrown
* because that constraint is only active for the StricterValidationGroup, which is not active here.
*/
employee.setStricterValueThanOthers("A");
validationResult = defaultValidator.validate(employee);
super.printValidationMessages(validationResult);
assertTrue(validationResult.isEmpty());
/*
* Validate with explicit default StricterValidationGroup group.