[dom4j-user] document.getXMLEncoding() always return null

[Ziad EL KHATIB]

Hi everybody, i have this code here but the document.getXMLEncoding() always return null !
Any idea ?

        Document document = DocumentHelper.createDocument();

        Element rootElement = document.addElement ("root");
        
        Element testNode = rootElement.addElement("testNode").addAttribute("name","Praveen");
        Element author1 = rootElement.addElement("author").addAttribute("name","James").addAttribute("location","UK").addText("James Strachan");

        author1 = rootElement.addElement("author").addAttribute("name","James").addAttribute("location","UK").addText("James Strachan");
        author1 = rootElement.addElement("author").addAttribute("name","James").addAttribute("location","UK").addText("James Strachan");

        //for deleting node
         testNode.detach();

        try{
            FileWriter out = new FileWriter("foo.xml");
            //OutputFormat outformat =OutputFormat.createCompactFormat();
            OutputFormat outformat = OutputFormat.createPrettyPrint();
            XMLWriter writer = new XMLWriter(out, outformat);
            writer.write(document);
            System.out.println(document.getXMLEncoding());
            writer.close ();
        }
        catch(Exception e){
            e.printStackTrace();
        }