Check network connection in libGDX

Newbie & Debugging Questions
#1

I would like to check network connection with use of libGDX and tried to use code below.

HttpRequestBuilder requestBuilder = new HttpRequestBuilder();
Net.HttpRequest httpRequest = requestBuilder.newRequest().method(Net.HttpMethods.GET).url("https://api.vk.com/").build();

Net.HttpResponseListener httpResponseListener = new httpResponseListener() {
    public void handleHttpResponse (Net.HttpResponse httpResponse) {
        HttpStatus status = httpResponse.getStatus();
        if (status.getStatusCode() >= 200 && status.getStatusCode() < 300) {
            // it was successful
        } else {
            // do something else
        }
    }
}

Gdx.net.sendHttpRequest(httpRequest, httpResponseListener);

It has several errors, like Gdx.net doesn’t have sendHttpRequest() function now. How should I correct this code?