No-Arg Constructor

I don't know this particular XML framework, but, usually you need a constructor that takes no parameters/arguments for each class that you wish to be deserialized. Such constructors are known as a "no-arg", "0-argument", or (formally) nullary constructor.

Otherwise, the framework cannot instantiate the class.

You don't have to delete things from constructor. You can just add something like this:

public Contact(@Element (name = "id") String id, @Element (name = "name") String name) {...

It was working for me :)

I think it is better to use SAX for parsing an XML this is an example of parsing:

You need to create a class parser like this:

 { public class DataXMLReader  extends DefaultHandler {    public DataXMLReader() {    }    public void startElement(String uri, String name, String qName,Attributes atts)     {                if (name.trim().equalsIgnoreCase("window"))                {                    atts.getValue("type_id") // to get proprietis                 }                else if (name.trim().equalsIgnoreCase("component"))                {                  }    }    public void endElement(String uri, String name, String qName)            throws SAXException {         if (name.trim().equalsIgnoreCase("component"))        {              if(Integer.parseInt(typeid)<=6)                idParent.remove(idParent.size()-1);        }                   }       @Override        public void startDocument() throws SAXException {            // TODO Auto-generated method stub            super.startDocument();            Log.e("StartDoc","Reading XML");        }            public void endDocument() throws SAXException {                // TODO Auto-generated method stub                myBdd.close();                 Log.e("EndtDoc","End XML");                    }}} 

and this is an example to call XML from URL:

String url="http://vxbfdhbf.xml";        try {            SAXParserFactory spf = SAXParserFactory.newInstance();            SAXParser sp = spf.newSAXParser();            XMLReader xr = sp.getXMLReader();            URL sourceUrl = new URL(url);            HttpURLConnection connection = null;            connection = (HttpURLConnection)sourceUrl.openConnection();            connection.setConnectTimeout(60000);            connection.setInstanceFollowRedirects(false);            connection.connect();            DataXMLReader myXMLHandler = new DataXMLReader(this,"1");            xr.setContentHandler(myXMLHandler);            xr.parse(new InputSource(connection.getInputStream()));            connection.disconnect();        } catch (Exception e) {            Log.e("saxERR",""+e.toString());        }