Getting null in document object Help me

Question

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
               DocumentBuilder builder = factory.newDocumentBuilder();
               InputSource inputSource = new InputSource();
               inputSource.setCharacterStream(new StringReader("<?xml version=\"1.0\"?><address></address>"));
               System.out.println(inputSource);
               Document doc = builder.parse(inputSource);
Getting doc object as null. CAn anyone please find out what could be the error in my code?

Answer 1

This works:
     * Get DOM document from a string containing XML.
     * @param inputStream InputStream to read XML content from.
     * @return DOM document or null if failed.
     * @throws Exception if failed.
    static public Document toDocument(InputStream inputStream) throws Exception {
        Document result = null;
        if (inputStream != null) {
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
//            factory.setValidating(true);  //needs error handler
            factory.setNamespaceAware(true);
            DocumentBuilder db = factory.newDocumentBuilder();
            result = db.parse(new InputSource(inputStream));
        }//else: input unavailable
        return result;
    }//toDocument()