Program: 114882
Project: 114882
Buggy source:
/** 
 * Create publish and subscribe a API.
 * @param apiIdentifier          - Instance of APIIdentifier object  that include the  API Name,API Version and API Provider
 * @param apiCreationRequestBean - Instance of APICreationRequestBean with all needed API information
 * @param publisherRestClient    -  Instance of APIPublisherRestClient
 * @param storeRestClient        - Instance of APIStoreRestClient
 * @param applicationName        - Name of the Application that the API need to subscribe.
 * @throws APIManagerIntegrationTestException - Exception throws by API create publish and subscribe a API activities.
 */
protected void createPublishAndSubscribeToAPI(APIIdentifier apiIdentifier,APICreationRequestBean apiCreationRequestBean,APIPublisherRestClient publisherRestClient,APIStoreRestClient storeRestClient,String applicationName) throws APIManagerIntegrationTestException {
  createAndPublishAPI(apiIdentifier,apiCreationRequestBean,publisherRestClient,false);
  HttpResponse httpResponseSubscribeAPI=subscribeToAPI(apiIdentifier,applicationName,storeRestClient);
  if (!(httpResponseSubscribeAPI.getResponseCode() == HTTP_RESPONSE_CODE_OK && getValueFromJSON(httpResponseSubscribeAPI,"String_Node_Str").equals("String_Node_Str"))) {
    throw new APIManagerIntegrationTestException("String_Node_Str" + getAPIIdentifierString(apiIdentifier) + "String_Node_Str"+ httpResponseSubscribeAPI.getResponseCode()+ "String_Node_Str"+ httpResponseSubscribeAPI.getData());
  }
  log.info("String_Node_Str" + getAPIIdentifierString(apiIdentifier));
}

Fixed version (ground truth):
/** 
 * Create publish and subscribe a API.
 * @param apiIdentifier          - Instance of APIIdentifier object  that include the  API Name,API Version and API Provider
 * @param apiCreationRequestBean - Instance of APICreationRequestBean with all needed API information
 * @param publisherRestClient    -  Instance of APIPublisherRestClient
 * @param storeRestClient        - Instance of APIStoreRestClient
 * @param applicationName        - Name of the Application that the API need to subscribe.
 * @throws APIManagerIntegrationTestException - Exception throws by API create publish and subscribe a API activities.
 */
protected void createPublishAndSubscribeToAPI(APIIdentifier apiIdentifier,APICreationRequestBean apiCreationRequestBean,APIPublisherRestClient publisherRestClient,APIStoreRestClient storeRestClient,String applicationName) throws APIManagerIntegrationTestException {
  createAndPublishAPI(apiIdentifier,apiCreationRequestBean,publisherRestClient,false);
  try {
    waitForAPIDeploymentSync(user.getUserName(),apiIdentifier.getApiName(),apiIdentifier.getVersion(),APIMIntegrationConstants.IS_API_EXISTS);
  }
 catch (  XPathExpressionException ex) {
    throw new APIManagerIntegrationTestException(ex.getMessage(),ex);
  }
  HttpResponse httpResponseSubscribeAPI=subscribeToAPI(apiIdentifier,applicationName,storeRestClient);
  if (!(httpResponseSubscribeAPI.getResponseCode() == HTTP_RESPONSE_CODE_OK && getValueFromJSON(httpResponseSubscribeAPI,"String_Node_Str").equals("String_Node_Str"))) {
    throw new APIManagerIntegrationTestException("String_Node_Str" + getAPIIdentifierString(apiIdentifier) + "String_Node_Str"+ httpResponseSubscribeAPI.getResponseCode()+ "String_Node_Str"+ httpResponseSubscribeAPI.getData());
  }
  log.info("String_Node_Str" + getAPIIdentifierString(apiIdentifier));
}