);          JsonNode responseNode = objectMapper.readTree(response.getEntity().getContent());         closeResponse(response);         assertThat(responseNode).isNotNull();         assertThatJson(responseNode)                 .isEqualTo("{"                         + "url: '" + SERVER_URL_PREFIX + RestUrls                         .createRelativeResourceUrl(RestUrls.URL_PROCESS_INSTANCE_IDENTITYLINK, processInstance.getId(), "kermit", "myType") + "',"                         + "user: 'kermit',"                         + "type: 'myType',"                         + "group: null"                         + "}");          // Test with unexisting process         httpPost = new HttpPost(                 SERVER_URL_PREFIX + RestUrls.createRelativeResourceUrl(RestUrls.URL_PROCESS_INSTANCE_IDENTITYLINKS_COLLECTION, 