public static OpticalConnectivityId of(long value) {
        return new OpticalConnectivityId(value);
    }
@Test
    public void testEquality() {
        OpticalConnectivityId tid1 = OpticalConnectivityId.of(1L);
        OpticalConnectivityId tid2 = OpticalConnectivityId.of(1L);
        OpticalConnectivityId tid3 = OpticalConnectivityId.of(2L);

        new EqualsTester()
                .addEqualityGroup(tid1, tid2)
                .addEqualityGroup(tid3)
                .testEquals();
    }