Sending request using json object return 404 error code

Question

I am getting mad with this code below.

When i send the request using the string directInput, it's working fine. Unfortunately when i used the json object converted into string jsonInput i got 404 error code. the directInput and jsonInput return the same values.

Someone could please help troubleshooting ? Thanks

public class Test {

public static void main(String[] args) {

try {

String userCredentials = "USR28:YG739G5XFVPYYV4ADJVW";

        String basicAuth = "Basic " + new String(Base64.getEncoder().encode(userCredentials.getBytes()));

        URL url = new URL("http://74.208.84.251:8221/QosicBridge/user/deposit");

HttpURLConnection conn = (HttpURLConnection) url.openConnection();

conn.setRequestMethod("POST");

conn.setRequestProperty("Content-Type", "application/json;");

conn.setRequestProperty("Accept", "application/json");

conn.setDoOutput(true);

conn.setRequestProperty ("Authorization", basicAuth);

//String directInput = "{\"msisdn\":\"22997858711\",\"amount\":1400,\"transref\":\"QOVNPVTRATYCBK8VIL1A\",\"clientid\":\"UBHQ\"}";

       

        DepositObject d = new DepositObject();

d.setMsisdn("22997858711");

d.setAmount(35);

d.setTransref("QOVNPVTRATYCBK8VIL1A");

d.setClientid("UHBQ");

Gson gson = new Gson();

String jsonInput = gson.toJson(d).toString();

OutputStream os = conn.getOutputStream();

os.write(jsonInput.getBytes());

os.flush();

if (conn.getResponseCode() != 200) {

throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());

}

BufferedReader br = new BufferedReader(new InputStreamReader( (conn.getInputStream())));

String output;

while ((output = br.readLine()) != null) {

System.out.println(output);

}

conn.disconnect();

} catch (MalformedURLException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}