Minimal jdk1.6 java http server. Sun's Internal.

DemoServer.java

import com.sun.net.httpserver.*;
import java.net.*;
import java.io.*;
import java.util.*;

public class DemoServer {
  public static void main(String[] args) throws Exception {
    final int port = 8000;
    HttpServer server = HttpServer.create( new InetSocketAddress("localhost", port), 10);
    server.createContext("/stats", new MyHandler());
    System.out.println("Server starting on port: " + port);
    server.start();
  }
}

class MyHandler implements HttpHandler {

  private int hits;

  public void handle(HttpExchange t) throws IOException {
    BufferedReader in = new BufferedReader(new InputStreamReader(t.getRequestBody()));
    String line;
    StringBuilder reqBody = new StringBuilder();
    while( (line = in.readLine()) != null ) {
      reqBody.append(line);
    }
    System.out.println("Method: " + t.getRequestMethod() + ". Body: " + reqBody.toString());

    Map<String,String> params = parse( reqBody.toString() );

    String str = "Hello World! " + (++hits);
    t.sendResponseHeaders(200, str.length());
    t.getResponseBody().write(str.getBytes());
    t.getResponseBody().close();
    t.close();
  }

  private Map<String,String> parse(String reqBody) {
    String[] elems = reqBody.split("&");
    Map<String,String> params = new HashMap<String,String>();
    for(String paramPair : elems) {
      String[] pair = paramPair.split("=");
      params.put(pair[0], pair[1]);
    }
    return params;
  }
}

Use this just for quick prototyping. Don't base your company on this one since com.sun.net.httpserver may be going out in the short term since they are not standard java packages.