}

    @ParameterizedTest(name = "anonymous preferred mech {0} -> {1}")
    @MethodSource("preferredMechData_anonymous")
    void isPreferredMech_anonymous(ASN1ObjectIdentifier oid, boolean expected) {
        Kerb5Authenticator auth = new Kerb5Authenticator((Subject) null);
        assertEquals(expected, auth.isPreferredMech(oid));
    }

    @Test