title: Read response body in JAX-RS client from a post request
body: <p>Having some sort of proxy between a mobile app and a web-service, we are puzzled by the response when issuing a post request. We receive response with status 200: OK. But we can not find/extract the JSON response body.</p>
  
  <pre><code>    Client client = ClientBuilder.newClient();
      WebTarget webTarget = client.target(WEBSERVICE_BASE_LOCATION + "mobileDevices?operatorCode=KPNSCP");
      String jsonString = "{\"osVersion\":\"4.1\",\"apiLevel\":16,\"devicePlatform\":\"ANDROID\"}";
      Builder builder = webTarget.request();
      Response response = builder.post(Entity.json(jsonString));
  </code></pre>
  
  <p>We are using JAX-RS. 
  Can someone please provide some hints to extract the JSON body (<code>String</code>) from the server response?</p>