code: @GET
    @Path("/responses")
    @Produces("application/json")
    public String getResponses() throws UnknownHostException {
      Properties clientProps = getPropeSenderProps();
  
      String listenerIPAddress = clientProps.getProperty("listenerIPAddress");
      String listenerPort = clientProps.getProperty("listenerPort");
      String listenerReponsesURLPath = clientProps.getProperty("listenerReponsesURLPath", DEFAULT_RESPONSES_URL_PATH);
  
      String response = restGetCall("http://" + listenerIPAddress + ":" + listenerPort + listenerReponsesURLPath);
  
      return response;
    }
docs: Returns a list of the responses collected in the listener.
  
  @return list of the responses collected in the listener
  @throws UnknownHostException if the ProbeSender props throws it