Certificate Error for the preSighnedURL about aws-sdk-android HOT 8 CLOSED

        Picasso.Builder builder = new Picasso.Builder(this);
        Picasso picasso = builder.downloader(new OkHttpDownloader(this) {
            @Override
            protected HttpURLConnection openConnection(Uri uri) throws IOException {
                // get bucket name and filename (key) from uri (https://s3.amazonaws.com/BUCKET_NAME/FILENAME.JPG)
                 String BUCKET_NAME;
                 URL url = sS3Client.generatePresignedUrl("<BUCKET_NAME>", "<FILENAME>", nowPlus10Minutes.getTime());
                 HttpURLConnection connection =null;
                try {
                    connection = super.openConnection(Uri.parse(url.toString()));
                    Log.v(" === connection.getURL()", connection.getURL().toString());
                }
                catch (Exception e){
                    Log.v( "Exception occured ", "picasso openConnection");
                }
                return connection;
            }
        }).build();
        picasso.setLoggingEnabled(true);

        picasso.load("https://s3.amazonaws.com/BUCKET_NAME/FILENAME.JPG").into(imageView,new Callback() {
            @Override
            public void onSuccess() {
                Log.v("-------","success");
            }

            @Override
            public void onError() {
                Log.v("--------","error");
            }
        });

    @Override
    protected Void doInBackground(Void... params) {
        Calendar tomorrow = Calendar.getInstance();
        tomorrow.add(Calendar.HOUR, 24);
        Date td = tomorrow.getTime();

        URL url = s3Client.generatePresignedUrl(YOUR_BUCKET, YOUR_IMAGE, td);
        Log.d(TAG,"URL is: "+url.toString());

        File storagePath = new File(Environment
                .getExternalStorageDirectory()
                + "/testpresignedurl/images/");
        storagePath.mkdirs();
        File file = new File(storagePath, YOUR_FILE);  

        HttpURLConnection urlConnection;
        try {
            urlConnection = (HttpURLConnection) url.openConnection();

        urlConnection.setRequestMethod("GET");
        urlConnection.connect();
        FileOutputStream fileOutput = new FileOutputStream(file);
        InputStream inputStream = urlConnection.getInputStream();
        int downloadedSize = 0;

        byte[] buffer = new byte[1024];
        int bufferLength = 0;
        while ((bufferLength = inputStream.read(buffer)) > 0) {
            fileOutput.write(buffer, 0, bufferLength);
            downloadedSize += bufferLength;
            Log.d(TAG,"downloaded chunk total: "+downloadedSize);
        }

        fileOutput.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}