@Test
    public void shouldHandleInstant() throws Exception  {
        final Instant o = Instant.ofEpochMilli(System.currentTimeMillis());
        assertEquals(o, serializeDeserialize(o, Instant.class));
    }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/structure/io/gryo/GryoMapperTest.java