Jetty does not close the socket when client has close the socket.

I wrote a sample code to see how jetty close the socket. but I found that jetty won't close the socket even after the client closed the peer-socket. this is my source code, very simple:

public static void main(String[] args) throws Exception {

Handler handler = new AbstractHandler() {
public void handle(String target, HttpServletRequest request,
HttpServletResponse response, int dispatch)
throws IOException, ServletException {
Continuation cont = ContinuationSupport.getContinuation(
request, null);
if(cont.isPending())

{ response.setContentType("text/html"); response.setStatus(HttpServletResponse.SC_OK); response.getWriter().println("<h1>Hello</h1>"); ((Request) request).setHandled(true); }

else

{ cont.suspend(0); }

}
};

Server server = new Server();
Connector connector = new SelectChannelConnector();
connector.setPort(8080);
server.setConnectors(new Connector[]

{ connector }

);
server.setHandler(handler);
server.start();
}

i can reproduce this bug by following way:

1. open web browser to access http://locahost:8080/hello . as the first time, it is suspended by continuation, and wait for being resumed.
2. close the web browser to simulate the user's leaving.
3. run command "nestat -tanp | grep 8080" to watch the tcp connection:

tcp 0 0 127.0.0.1:43465 127.0.0.1:8080 FIN_WAIT2 -
tcp6 0 0 :::8080 :::* LISTEN 22866/java
tcp6 1 0 127.0.0.1:8080 127.0.0.1:43465 CLOSE_WAIT 22866/java

abviously, CLOSE_WAIT status tells me that the socket is waiting for being closed. I think, since i have closed the web browser, the socket of server should be close at once.