Cannot openInputStream on device

Question

Dear all,
I've written a J2ME application for Sony Ericsson T610 that requests data from a servlet. In the emulator everything goes fine, but when I run it on the real device it throws an exception on "is.openInputStream" ! Since it runs fine in the emulator, I have a hard time finding the problem. Can anyone help me ?
This is the servlet side :
           HttpConnection conn = null;
          InputStream is = null;
          byte[] receivedData = null;
          try
               /* Setup the Http connection */                                        
               conn = (HttpConnection)Connector.open(this.composedUrl);               
               conn.setRequestMethod(HttpConnection.GET);               
               conn.setRequestProperty("User-Agent","Profile/MIPD-1.0 Configuration/CLDC-1.0");               
                             conn.setRequestProperty("Content-type","application/x-www-form-urlencoded");               
               /* Open the connection */
               is = conn.openInputStream();
               /* Read the Http header */
               String contentType = conn.getType();
               formSchedule.append("<"+contentType+">");
               /* Read the data */
               int len = (int)conn.getLength();
               if(len > 0)
                    receivedData = new byte[len];                    
                    int actual = is.read(receivedData);
               else
                    receivedData = new byte[1024];
                    int ch;
                    len = 0;
                    while((ch = is.read()) != -1)
                         if(len<1024)
                              receivedData[len++] = (byte)ch;
               /* Show the data on screen */
               String response = new String(receivedData,0,(len%1023));
               StringItem strResponse = new StringItem(response,null);
               formSchedule.append(strResponse);
               display.setCurrent(formSchedule);
          catch(Exception e)
          finally
               try
                    if(is!=null)
                         is.close();
                    if(conn!=null)
                         conn.close();
               catch(IOException ioe) {}
     }This is the servlet side :
     public void doGet (HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
          String prog_s=request.getParameter(PROGRAM_PAR);
          String date_s=request.getParameter(DATE_PAR);
          PrintWriter out=response.getWriter();
          if (date_s!=null && prog_s!=null){
               try{
                    int program=Integer.parseInt(prog_s);
                    //DateFormat format=DateFormat.getDateInstance();
                    Date date=new Date(Long.parseLong(date_s));
                    switch (program){
                    case PROG_CERT:
                         out.println("Certificate - "+date);
                         break;
                    case PROG_ENG:
                         out.println("Engeneering - "+date);
                         break;
                    case PROG_ENT:
                         out.println("Certificate - "+date);
                         break;
                    default:
                         out.println("Invalid Program Parameter");
                         break;
               }catch (NumberFormatException e){
                    out.println(date_s);
          }else{
               if (date_s==null) out.println("Date Parameter is missing");
               if (prog_s==null) out.println("Program Parameter is missing");
          out.close();
     }Any help or advice would be greatly appreciated.
Philippe

Answer 1

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