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

	System.out.println("testSemanticsNoUserWithGivenName()");
	attributeToCheck.setValue("correct_value");
	namespaceAttribute.setValue(null);
	classInstance.checkAttributeSemantics(sess, group, resource, attributeToCheck);
}