static String readString(String json, String jsonPath) {
    return JsonPath.compile(jsonPath).read(json);
  }
Path under the Eureka v2 endpoint for the app named "zipkin".
Note that Eureka always coerces app names to uppercase.
zipkin-server/src/test/java/zipkin2/server/internal/eureka/BaseITZipkinEureka.java