private String getEurekaZipkinAppAsString() throws IOException {
    try (Response response = getEurekaZipkinApp(); ResponseBody body = response.body()) {
      assertThat(response.isSuccessful()).withFailMessage(response.toString()).isTrue();
      return body != null ? body.string() : "";
    }
  }
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