public static double getUTCTimestampWithMilliseconds() {
        return getUTCTimestampWithMilliseconds(System.currentTimeMillis());
    }
@Test
    public void testGetUTCTimestampWithMilliseconds() {

        assertTrue(Tools.getUTCTimestampWithMilliseconds() > 0.0d);
        assertTrue(Tools.getUTCTimestampWithMilliseconds(Instant.now().toEpochMilli()) > 0.0d);
    }