@Test void noAnnotations_rootServerSpan_JSON_V2() {
    span = NO_ANNOTATIONS_ROOT_SERVER_SPAN;

    assertThat(new String(SpanBytesEncoder.JSON_V2.encode(span), UTF_8))
        .isEqualTo(
            "{\"traceId\":\"dc955a1d4768875d\",\"id\":\"dc955a1d4768875d\",\"kind\":\"SERVER\",\"name\":\"get\",\"timestamp\":1510256710021866,\"duration\":1117,\"localEndpoint\":{\"serviceName\":\"isao01\",\"ipv4\":\"10.23.14.72\"},\"tags\":{\"http.path\":\"/rs/A\",\"location\":\"T67792\",\"other\":\"A\"}}");
  }
the following skeletal span is used in dependency linking
zipkin/src/test/java/zipkin2/codec/SpanBytesEncoderTest.java