Problem with Proxy Server Code in Java

Hi,

I am trying to write a very simple Proxy Server.
When I run the code below (it's only the main part of the code.
Everything compiles)
I have a problem that the read of input stream seem to hang.
I marked the problematic line.
(while ((bytesRead = istream.read(response)) >= 0))
It never prints "inside loop" and after a few checks I found out that
the read is the problem.
Can anyone see a problem in the code?

Thanks for you help

The code:

Integer port = new Integer(_props.getProperty("proxy.port"));
                ServerSocket serverSocket = new
ServerSocket(port.intValue());
                Socket socket = null;
                String fullRequest = "";
                while(true) {

                    socket = serverSocket.accept();

                    InputStream istream = socket.getInputStream();
                    OutputStream ostream = socket.getOutputStream();

                    StringBuffer headers = new StringBuffer();
                    int byteRead = 0;
                    while (!endOfHeaders(headers) && (byteRead =
istream.read()) >= 0) {
                        headers.append((char) byteRead);

                    }

                    HttpRequestHeader header = new
HttpRequestHeader(headers.toString());

                    ostream.write(header.asciiGetBytes(false));

                    int bytesRead = -1;
                    byte[] response = new byte[4096];
                    System.out.println("Before loop");
                    //Hangs on the read right below.
       The problem----->>>>> while ((bytesRead =
istream.read(response)) >= 0) {
                          System.out.println("Inside loop");
                        ostream.write(response, 0, bytesRead);
                        ostream.flush();
                        System.out.write(response, 0, bytesRead);
                    }
                      System.out.println("After loop");
                    socket.close();