How to read Image (or other File) in a Servlet and encode it to base64 [duplicate]

Answer 1

Why so complicated and why read the complete image into memory? A much simpler solution:

protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
    sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder();
    enc.encode(new FileInputStream("/path/to/file.whatever"), response.getOutputStream());
}