gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/structure/SerializationTest.java [709:744]:
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            final Path p = g.V(convertToVertexId("marko")).as("a").outE().as("b").inV().as("c").path()
                    .filter(t -> ((Vertex) t.get().objects().get(2)).value("name").equals("lop")).next();
            final String json = mapper.writeValueAsString(p);
            final Path detached = mapper.readValue(json, Path.class);

            assertNotNull(detached);
            assertEquals(p.labels().size(), detached.labels().size());
            assertEquals(p.labels().get(0).size(), detached.labels().get(0).size());
            assertEquals(p.labels().get(1).size(), detached.labels().get(1).size());
            assertEquals(p.labels().get(2).size(), detached.labels().get(2).size());
            assertTrue(p.labels().stream().flatMap(Collection::stream).allMatch(detached::hasLabel));

            final Vertex vOut = p.get("a");
            final Vertex detachedVOut = detached.get("a");
            assertEquals(vOut.label(), detachedVOut.label());
            assertEquals(vOut.id(), detachedVOut.id());
            assertEquals("marko", detachedVOut.value("name").toString());
            assertEquals(Integer.valueOf(29), detachedVOut.value("age"));

            final Edge e = p.get("b");
            final Edge detachedE = detached.get("b");
            assertEquals(e.label(), detachedE.label());
            assertEquals(e.id(), detachedE.id());
            assertEquals((double) e.value("weight"), detachedE.value("weight"), 0.0001d);

            final Vertex vIn = p.get("c");
            final Vertex detachedVIn = detached.get("c");
            assertEquals(vIn.label(), detachedVIn.label());
            assertEquals(vIn.id(), detachedVIn.id());
            assertEquals("lop", detachedVIn.value("name").toString());
            assertEquals("java", detachedVIn.value("lang").toString());
        }

        @Test
        @LoadGraphWith(LoadGraphWith.GraphData.MODERN)
        public void shouldSerializeTraversalMetrics() throws Exception {
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gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/structure/SerializationTest.java [907:942]:
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            final Path p = g.V(convertToVertexId("marko")).as("a").outE().as("b").inV().as("c").path()
                    .filter(t -> ((Vertex) t.get().objects().get(2)).value("name").equals("lop")).next();
            final String json = mapper.writeValueAsString(p);
            final Path detached = mapper.readValue(json, Path.class);

            assertNotNull(detached);
            assertEquals(p.labels().size(), detached.labels().size());
            assertEquals(p.labels().get(0).size(), detached.labels().get(0).size());
            assertEquals(p.labels().get(1).size(), detached.labels().get(1).size());
            assertEquals(p.labels().get(2).size(), detached.labels().get(2).size());
            assertTrue(p.labels().stream().flatMap(Collection::stream).allMatch(detached::hasLabel));

            final Vertex vOut = p.get("a");
            final Vertex detachedVOut = detached.get("a");
            assertEquals(vOut.label(), detachedVOut.label());
            assertEquals(vOut.id(), detachedVOut.id());
            assertEquals("marko", detachedVOut.value("name").toString());
            assertEquals(Integer.valueOf(29), detachedVOut.value("age"));

            final Edge e = p.get("b");
            final Edge detachedE = detached.get("b");
            assertEquals(e.label(), detachedE.label());
            assertEquals(e.id(), detachedE.id());
            assertEquals((double) e.value("weight"), detachedE.value("weight"), 0.0001d);

            final Vertex vIn = p.get("c");
            final Vertex detachedVIn = detached.get("c");
            assertEquals(vIn.label(), detachedVIn.label());
            assertEquals(vIn.id(), detachedVIn.id());
            assertEquals("lop", detachedVIn.value("name").toString());
            assertEquals("java", detachedVIn.value("lang").toString());
        }

        @Test
        @LoadGraphWith(LoadGraphWith.GraphData.MODERN)
        public void shouldSerializeTraversalMetrics() throws Exception {
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