Servlets :: Unicode Post Request Parameters

I developed some servlet to get unicode parameters via post request. It worked perfectly fine since I set the encoding as below:

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
HttpSession session = request.getSession(false);
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
request.setCharacterEncoding("UTF-8");
String fileContent = request.getParameter("fileContent");
}

Now that I have set up my dev environment on a new machine with new eclipse, it does not work.

It displays Ï instead of π.

I've already tried adding URIEncoding="UTF-8" to server.xml which did not work since it only affect get not post. I figured out how to get the parameter with correct encoding on the new system:

String[] parameters = URLDecoder.decode(request.getQueryString(), "UTF-8").split("&");

But I cannot believe that this is the solution because then what's the point of having request.getParameter. I already know that:

String sss = new String(fileContent.getBytes(),"UTF-8");

would not work.