         CloseableHttpResponse response = executeRequest(                 new HttpGet(SERVER_URL_PREFIX + RestUrls                         .createRelativeResourceUrl(RestUrls.URL_PROCESS_INSTANCE_IDENTITYLINKS_COLLECTION, processInstance.getId())), HttpStatus.SC_OK);          JsonNode responseNode = objectMapper.readTree(response.getEntity().getContent());         closeResponse(response);         assertThat(responseNode).isNotNull();         assertThatJson(responseNode)                 .