parsing xml file online

good morning t tried to parse xml file online and show result in a simple listview i used asynch task to parse the xml file but i get this error

this the hole code :

public class Pdfreader extends Activity {
    ArrayList<HashMap<String, String>> name=null; 
    ListView maListViewPdf;
    private ProgressDialog mProgressDialog;
    @Override

     protected void onCreate(Bundle savedInstanceState)
     {
         super.onCreate(savedInstanceState);
         /** Create a new layout to display the view */
         setContentView(R.layout.pdf);
         maListViewPdf = (ListView) findViewById(R.id.listpdf);
         AsyncTask<Void, Void, Void> task = new AsyncTask<Void, Void, Void>() {

            protected void onPreExecute() {

                    mProgressDialog = new ProgressDialog(Pdfreader.this);
                    mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
                    mProgressDialog.setMessage("جاري التحميل....");
                    mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
                    mProgressDialog.show();
         }
        protected Void doInBackground(Void... params) {
            // TODO Auto-generated method stub
            URL url = null;
            try {
                url = new URL("the url");
            } catch (MalformedURLException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
             DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
             DocumentBuilder db = null;
            try {
                db = dbf.newDocumentBuilder();
            } catch (ParserConfigurationException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
             org.w3c.dom.Document doc = null;
            try {
                doc = db.parse(new InputSource(url.openStream()));
            } catch (SAXException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
             doc.getDocumentElement().normalize();
             NodeList nodeList = doc.getElementsByTagName("item");
             for (int i = 0; i < nodeList.getLength(); i++) {

                 Node node = nodeList.item(i);

                 Element fstElmnt = (Element) node;
                 NodeList nameList = ((org.w3c.dom.Document) fstElmnt).getElementsByTagName("title");
                 Element nameElement = (Element) nameList.item(0);
                 nameList = ((Node) nameElement).getChildNodes();

                 NodeList websiteList = ((org.w3c.dom.Document) fstElmnt).getElementsByTagName("link");
                 Element websiteElement = (Element) websiteList.item(0);
                 websiteList = ((Node) websiteElement).getChildNodes();
                 HashMap<String, String> map = new HashMap<String, String>();
                    map.put("title", ((Node) nameList.item(0)).getNodeValue());
                    map.put("tel", ((Node) websiteList.item(0)).getNodeValue());
                   name.add(map);
                   System.out.println( ((Node) nameList.item(0)).getNodeValue());
             }
            return null;
        }
             protected void onPostExecute(Void result) {
                 SimpleAdapter adapt = new SimpleAdapter(Pdfreader.this,
                        name, R.layout.one_article,
                        new String[] { "title" },
                        new int[] { R.id.titreArticle });

                 // maListViewPdf.setAdapter(adapt);
                 /* WebView mWebView=new WebView(Pdfreader.this);
                     mWebView.loadUrl("http://ift.tt/1edRTVV");
                     setContentView(mWebView);*/
            }
        };
        task.execute((Void[]) null);

     }  
}

this the log :

01-01 10:35:29.855: E/AndroidRuntime(1305): FATAL EXCEPTION: AsyncTask #1
01-01 10:35:29.855: E/AndroidRuntime(1305): java.lang.RuntimeException: An error occured while executing doInBackground()
01-01 10:35:29.855: E/AndroidRuntime(1305):     at android.os.AsyncTask$3.done(AsyncTask.java:299)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at java.util.concurrent.FutureTask.run(FutureTask.java:137)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at java.lang.Thread.run(Thread.java:856)
01-01 10:35:29.855: E/AndroidRuntime(1305): Caused by: java.lang.ClassCastException: org.apache.harmony.xml.dom.ElementImpl cannot be cast to android.renderscript.Element
01-01 10:35:29.855: E/AndroidRuntime(1305):     at com.example.albir.Pdfreader$1.doInBackground(Pdfreader.java:89)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at com.example.albir.Pdfreader$1.doInBackground(Pdfreader.java:1)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at android.os.AsyncTask$2.call(AsyncTask.java:287)
01-01 10:35:29.855: E/AndroidRuntime(1305):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)

can you help me please