用于在Apple IOS中取消应用内购买的URL

我正在使用Apple with Java以这种方式验证应用内购买

public static void  validateProductPurhcaseReceipt(String receiptData, String VERIFICATION_URL)
    {
        Map outPut = new HashMap();
        HttpClient httpClient = new DefaultHttpClient();
        try {
            HttpPost request = new HttpPost(VERIFICATION_URL);
            JSONObject requestData = new JSONObject();
            requestData.put("receipt-data", receiptData);
            requestData.put("password", "f1ebdc2f49664d7188b4d83f90131ecf");
            StringEntity requestEntity = new StringEntity(requestData.toString());
            request.addHeader("content-type", "application/x-www-form-urlencoded");
            request.setEntity(requestEntity);
            HttpResponse response = httpClient.execute(request);
            String responseBody = EntityUtils.toString(response.getEntity());
            JSONObject responseJSON = new JSONObject(responseBody);
            System.out.println(responseJSON);
            }
        catch (Exception ex) {
        ex.printStackTrace();
        }
        finally {
            httpClient.getConnectionManager().shutdown();
        }

    }

我使用的URL用于验证收据是

Development mode = https://sandbox.itunes.apple.com/verifyReceipt
Production mode = https://buy.itunes.apple.com/verifyReceipt

请告诉我取消应用内购买的URL是什么