Http Get Request returns html?

Once you check the server side code as well..after the is coming means change the code like this...

url = new URL(urlString);        httpURLConnection = (HttpsURLConnection) url.openConnection();        //httpURLConnection = (HttpURLConnection) url.openConnection();    //  HttpsURLConnection.setDefaultHostnameVerifier(new NullHostNameVerifier());        httpURLConnection.setRequestMethod("GET");        httpURLConnection.setRequestProperty("Connection", "keep-alive");        httpURLConnection.setRequestProperty("Content-Type",                "application/json");        httpURLConnection.setRequestProperty("UseCookieContainer", "True");        httpURLConnection.setChunkedStreamingMode(0);        httpURLConnection.connect();        if (httpURLConnection != null) {            respCode = httpURLConnection.getResponseCode();            messageStatus.setResponseCode(respCode);        }        if (respCode == 200) {            InputStream responseStream = httpURLConnection.getInputStream();            messageStatus.setResponseStream(responseStream);        }

Are you in control of the target web service?

Have you tried "text/x-json" as the content type. Recently found out myself that some systems don't support application/json even though it's the standard.

The server must return JSON, not just printing. If you use PHP for example, use:

print(json_encode($response));

not simple print method.