download archived file in Java

public byte[] request(String urlString)
{
    URL url = null;
    File file = null;
    try {
        url = new URL(urlString);
        URLConnection conn = url.openConnection();
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestProperty("content-type", "binary/data");  // binary/data is key
        InputStream in = conn.getInputStream();  // read InputStream from network
        file = new File("name.zip");
        FileOutputStream out = new FileOutputStream(file); // OutputStream as file
        byte[] b = new byte[2048];
        int count;
        while ((count = in.read(b)) > 0) {
            out.write(b, 0, count);
        }
        out.close();
        in.close();
    }
    catch (IOException e) {
    }
}