android - HttpPost のエンティティを取得中にエラーが発生しました

Question

以下は、投稿してからURLから応答を取得するコードです...コードを実行するたびに、Bufferedreaderで応答が得られません...

protected Void doInBackground(String... urls) {

    try{

    HttpClient httpclient = new DefaultHttpClient();

    HttpPost httppost = new HttpPost("http://www.indianrail.gov.in/pnr_Enq.html");

    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

     response = httpclient.execute(httppost);

    }catch(Exception e){

    Log.e("log_tag", "Error in http connection "+e.toString());

    }

    return null;

    }


protected void onPostExecute(Void unused) {

    Dialog.dismiss();
    HttpEntity httpEntity= response.getEntity();
    Toast.makeText(getApplicationContext(), "resp of :"+response.getEntity().getContentLength(), Toast.LENGTH_SHORT).show();

    try {
        Toast.makeText(getApplicationContext(), "in", Toast.LENGTH_SHORT).show();
        Toast.makeText(getApplicationContext(), ""+response.getEntity().getContentLength(), Toast.LENGTH_SHORT).show();
        in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
        Toast.makeText(getApplicationContext(), "string creating :)",Toast.LENGTH_SHORT).show();
       Toast.makeText(getApplicationContext(), ""+line, Toast.LENGTH_SHORT).show();
    }  catch (Exception e) {
        // TODO Auto-generated catch block
        Toast.makeText(getApplicationContext(), "error", Toast.LENGTH_SHORT).show();

        e.printStackTrace();
    }

postExecute メソッドの Bufferedreader でエラーが発生します... LogCat o/p は次のとおりです。

E/ActivityThread(611): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40cf4cf0 that was originally bound here