Java Runnable using a utility function post call

Question

I have a work project where I am having multiple threads call a utility function I created that sends a post form to an internal API we have.

I use the callAPI method here which is in a utility class, which is public, final and static :

public static  int callAPI(String url, TaskListener listener, String operation, String id, String password, String sUser){
      Client client = ClientBuilder.newClient();



      Form form = new Form();
      form.param("case", id);
      form.param("user", sUser);
      form.param("password", password);
      listener.getLogger().println("*******************************************************");
      listener.getLogger().println("Sending API Service Request");

      Response response = client.target(url)
              .path(operation)
              .request(MediaType.APPLICATION_JSON)
              .post(Entity.entity(form, MediaType.APPLICATION_FORM_URLENCODED_TYPE));


  }

I then have this run method in my Runnable class:

  @Override
  public void run(){

       listener.getLogger().println("Thread Started.\n");

       int runId = Utility.callAPI(wUrl, listener, operation, password, sUser);

       listener.getLogger().println("call completed");
  }

So what actually prints in Jenkins console output:

*******************************************************
Sending API Service Request
Thread Started.

This means I know my run() method is being called and so my thread is starting. I know it can see my runAPI method in the utility.

Now all I can gather is that this line:

 Response response = client.target(url)
                  .path(operation)
                  .request(MediaType.APPLICATION_JSON)
                  .post(Entity.entity(form, MediaType.APPLICATION_FORM_URLENCODED_TYPE));

sends a request and from there the thread exits before it finishes off the rest of the run() method.

I've tried:

• putting a thread sleep loop
• putting the call in a while loop

It has been awhile since I've done any Java programming or threading. This is something very simple that I know I am forgetting.

ALSO I HAVE CHANGED A LOT OF MY CODE AND HAVE ONLY SHOWN THE CRITICAL PARTS BEING THIS IS PART OF A WORK PROJECT AND I DIDNT WANT TO TAKE CHANCES.