void getTraces_spanName(Span clientSpan) throws Exception {
    accept(clientSpan);

    assertGetTracesReturnsEmpty(
      requestBuilder().spanName(clientSpan.name() + 1).build());

    assertGetTracesReturnsEmpty(
      requestBuilder()
        .serviceName(clientSpan.localServiceName())
        .spanName(clientSpan.name() + 1)
        .build());

    assertGetTracesReturns(
      requestBuilder().spanName(clientSpan.name()).build(),
      List.of(clientSpan));

    assertGetTracesReturns(
      requestBuilder()
        .serviceName(clientSpan.localServiceName())
        .spanName(clientSpan.name())
        .build(),
      List.of(clientSpan));
  }
This is unlikely and means instrumentation sends empty spans by mistake.
zipkin-tests/src/main/java/zipkin2/storage/ITSpanStore.java