@Test(expected = WrongReferenceAttributeValueException.class)
public void testCheckWithNullWithNullMaxUid() throws Exception {

	System.out.println("testCheckWithNullWithNullMaxUid()");
	minUid.setValue(1);
	maxUid.setValue(null);
	attributeToCheck.setValue(5);
	classInstance.checkAttributeSemantics(session, user, attributeToCheck);
}