}

    static Object[][] preferredMechData_nonAnonymous() {
        return new Object[][] { { Kerb5Context.SUPPORTED_MECHS[0], true }, { Kerb5Context.SUPPORTED_MECHS[1], true },
                { new ASN1ObjectIdentifier("1.2.3.4.5"), false } };
    }

    @ParameterizedTest(name = "non-anon preferred mech {0} -> {1}")
    @MethodSource("preferredMechData_nonAnonymous")