private void doGetObjectLockConfigurationTest(String account, String container) throws Exception {
    String uri = String.format("/s3/%s/%s?object-lock=", account, container);
    HttpHeaders headers = new DefaultHttpHeaders();
    FullHttpRequest httpRequest = buildRequest(HttpMethod.GET, uri, headers, null);
    NettyClient.ResponseParts responseParts = nettyClient.sendRequest(httpRequest, null, null).get();
    HttpResponse response = getHttpResponse(responseParts);
    assertEquals("Unexpected status", HttpResponseStatus.NOT_FOUND, response.status());
  }
Shuts down the Ambry frontend server.
ambry-frontend/src/integration-test/java/com/github/ambry/frontend/S3IntegrationTest.java