Applet - Servlet. Conection problem.

public synchronized boolean setConnection(String url){
        try{
            URL servlet = new URL(url);
            conn = servlet.openConnection();
            conn.setDoInput(true);
            conn.setDoOutput(true);
            conn.setUseCaches(false);
            connected = true;
                                      return true;
        }
        catch (Throwable ex)
        {
            System.out.println ("DICApplet::setConnection::"+ex);
            return false;
        }
       
}

private synchronized void sendObject(URLConnection servletConnection, Object theObject)
{
    ObjectOutputStream outputToServlet = null;
    try
    {
        outputToServlet = new ObjectOutputStream(servletConnection.getOutputStream());
        conn.connect();
        outputToServlet.writeObject("theObject");
        outputToServlet.reset();
        outputToServlet.flush();           
        outputToServlet.close();
        System.out.println("Send object");
       
}
    catch (IOException e)
    {
        System.out.println("DICConnection::sendObject::" + e);    
    }
}

public class GetData extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request,response);
    }  
   
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
                          throws ServletException, IOException {
        request.setCharacterEncoding("Cp1251");
        String para = request.getContentType();
        System.out.println(request.getRemoteAddr());
        PrintWriter pw = response.getWriter();
        pw.println("<h1> Get data2 </h1>" + para);
    }