Android xml saxparser not working

I have to extract some elements from XML read from network. Below class using to read.

public class SAXXMLParserThread extends ParserBaseThread implements Runnable,ParserBase{
    private static final String TAG = "SAXXMLParser";
    private Handler handler;
    private SAXParser parser;
    private Looper mLooper;
    public DefaultHandler parseHandler;

    public SAXXMLParserThread(Handler handler) {
        // TODO Auto-generated constructor stub
//      super(handler);
        this.handler = handler;
        Thread parserThread = new Thread(this);
        parserThread.setName("com.example.saxparser");
        parserThread.start();

    }

    @Override
    public void run() {
        // TODO Auto-generated method stub

        SAXParserFactory factory=SAXParserFactory.newInstance();
        try{
            parser=factory.newSAXParser();

        }catch(Exception ex){
            Log.e(TAG,"Exception creating parser");
            ex.printStackTrace();
        }
        Looper.prepare();
        synchronized (this) {
            mLooper = Looper.myLooper();
            notifyAll();
        }
        // setPriority(mPriority);
//      Process.setThreadPriority(mPriority);
        Looper.loop();

    }

    //  public class ParseHandler extends DefaultHandler{
@Override
public void endDocument() throws SAXException {
    // TODO Auto-generated method stub
    super.endDocument();
    Log.e(TAG,"DRC document end detected...");
}
@Override
public void startElement(String uri, String localName, String qName,
        Attributes attributes) throws SAXException {
    // TODO Auto-generated method stub
    super.startElement(uri, localName, qName, attributes);
Log.e(TAG,"DRC document start detected...");

}

@Override
public void endElement(String uri, String localName, String qName)
        throws SAXException {
    // TODO Auto-generated method stub
    super.endElement(uri, localName, qName);
    Log.e(TAG,"end tag received: </"+localName+">");

}
@Override
public void startDocument() throws SAXException {
    // TODO Auto-generated method stub
    super.startDocument();
    Log.e(TAG,"DRC document start detected...");
}
//  }

    @Override
    public void parseAndValidate(InputStream inputStream) {
        // TODO Auto-generated method stub
        if(parser != null){
            try {
                if(parseHandler == null)
                    parseHandler = new DefaultHandler();
                Log.e(TAG,"calling parser.parse(inputStream, parseHandler );");
                parser.parse(inputStream, parseHandler );
            } catch (SAXException | IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
    public Looper getLooper() {
        if (!Thread.currentThread().isAlive()) {
            return null;
        }
        // If the thread has been started, wait until the looper has been
        // created.
        synchronized (this) {
            while (Thread.currentThread().isAlive() && mLooper == null) {
                try {
                    wait();
                } catch (InterruptedException e) {
                }
            }
        }
//      Log.e(TAG,"Returning looper asoicated with thread "+mLooper.getThread().getName());
        return mLooper;
    }

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
    public boolean quitSafely(){
        if(mLooper != null){
            if(Build.VERSION.SDK_INT >=18)
                mLooper.quitSafely();
            else
                mLooper.quit();
            return true;
        }
        return false;

    }
    public void setHandler(Handler self) {
        synchronized (this) {
            this.handler = self;
        }
    }
    }

I don't get any of the functions called...

If i set breakpoint and step into the parse method, i don;t have source attached, but in variable list i see some variables such as qName, localName, and the stream is actaully read, because the in adn out variables of the input stream are not 0 or -1. Also the xml coming is valid and the input stream is not waiting for data, i.e, the steam pushes adequate data.

I think, the XML is parsed, but the callbacks are not invoked..

Where am i making mistake,

Please help