QR code generator with zxing

GenerateQrService

public static BufferedImage createQr(String text, Integer length) throws UnsupportedEncodingException, WriterException {

        MultiFormatWriter writer = new MultiFormatWriter();
        text = new String(text.getBytes("UTF-8"),"UTF-8");
        BitMatrix matrix = writer.encode( text,
                BarcodeFormat.QR_CODE, length, length);

        BufferedImage bufferedImage = MatrixToImageWriter.toBufferedImage(matrix);

        return bufferedImage;
    }