private static Timestamp cloneTimestamp(Object t, IDeepCloner cloner, Map<Object, Object> cloners) {
        Timestamp original = (Timestamp) t;
        Timestamp clone = new Timestamp(original.getTime());
        clone.setNanos(original.getNanos());
        return clone;
    }
@Test
    void cloneTimestamp() {
        Timestamp date = new Timestamp(System.currentTimeMillis());
        date.setNanos(1);
        Timestamp dupe = cloner.deepClone(date);
        assertThat(dupe)
                .isExactlyInstanceOf(Timestamp.class)
                .isEqualTo(date);
    }