URL call works in windows and not in linux

Question

HI,
I am using the below code to call a URL from my java code. It works fine when I access the application from local tomcat service, but it doesn't work under linux where my production server is setup.
URL url = new URL(urlData);
                         URLConnection conn = url.openConnection();
                         conn.setDoOutput(true);
                         OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
               wr.write(rawData);
               wr.flush();
               BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
               String line;
               while ((line = rd.readLine()) != null) {
                    if (mode.equalsIgnoreCase("O"))
                         retValCaseId = Integer.parseInt(line.toString());
                    else if(mode.equalsIgnoreCase("C"))
                         retValCloseStatus = line.toString();
                         //System.out.println("retValCloseStatus "+ retValCloseStatus);
               wr.close();
               rd.close();

Answer 1

Do anyone know what is the problem?
Regds,
noneda