dom4j

    public static Document read(String fileName)
        throws MalformedURLException, DocumentException, SAXException {
        SAXReader reader = new SAXReader();
        reader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd",
            false);
        Document document = reader.read(new File(fileName));
        return document;
    }
    
    public static Element getRootElement(Document doc) {
        return doc.getRootElement();
    }

public void dealCpd() {
        String fileName = "dist/cpd.xml";
        Document doc = null;
        try {
            doc = read(fileName);
            Element root = getRootElement(doc);
            for (Iterator i = root.elementIterator("duplication"); i.hasNext();) {
                Element dupElm = (Element)i.next();
                List<Element> fileList =  dupElm.elements("file");
                Element fileElm1 = fileList.get(0);
                Element fileElm2 = fileList.get(1);
                
                String fileName1 = fileElm1.attribute("path").getText().replace(srcDirFile.getAbsolutePath() + "\\", "");
                String fileName2 = fileElm2.attribute("path").getText().replace(srcDirFile.getAbsolutePath() + "\\", "");
                
                
//                System.out.println("***fileName:" + fileName1 + "  " + fileName2);
                if (oldCNNFileSet.get(fileName1) == null || oldCNNFileSet.get(fileName2) == null) {
                    System.out.println("***cpd remove:" + fileName1 + "  " + fileName2);
                    dupElm.getParent().remove(dupElm);
                }
            }
            XMLWriter writer = new XMLWriter(new FileOutputStream(fileName));
            writer.write(doc);
            writer.close();
        }
        catch (MalformedURLException e) {
            e.printStackTrace();
        }
        catch (DocumentException e) {
            e.printStackTrace();
        }
        catch (SAXException e) {
            e.printStackTrace();
        }
        catch (IOException e) {
            e.printStackTrace();
        }
    }