public static Document construirDocumento(File xml) throws FileNotFoundException, IOException, JDOMException {
        SAXBuilder builder = new SAXBuilder();
        FileInputStream fis = new FileInputStream(xml);
        byte[] data = new byte[(int) xml.length()];
        fis.read(data);
        fis.close();
        ByteArrayInputStream bais = new ByteArrayInputStream(new String(data).getBytes("UTF-8"));
        Document docXML = builder.build(bais);
        bais.close();
        return docXML;
    }