HttpURLConnection conn.getRequestProperty return null
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I'm trying to push some data to an URL (MDS_CS) for a BES

when i set some Request Headers in my code, and submit the request, the submited request's header is set to **null**.

here is my code :

            HttpURLConnection conn =(HttpURLConnection)url.openConnection();
            conn.setDoInput(true);//For receiving the confirmation
            conn.setDoOutput(true);//For sending the data
            conn.setRequestMethod("POST");//Post the data to the proxy
            conn.setRequestProperty("X-Rim-Push-ID", pushId);
            conn.setRequestProperty("Content-Type", "text/html");
            conn.setRequestProperty("X-Rim-Push-Title", "-message");
            conn.setRequestProperty("X-Rim-Push-Type", "browser-message");                 
            conn.setRequestProperty("X-Rim-Push-Dest-Port", "7874");            
            //Write the data
            OutputStream out = conn.getOutputStream();
            out.write(data.getBytes());
            out.close();
            
            System.out.println(conn.getHeaderField("X-Rim-Push-ID"));


the last line return null when i try to retrieve the **X-Rim-Push-Title** it is **NULL**
only **X-Rim-Push-ID** which is correctly retrieved,

please help me