Here you can find the source of newDocument()
public static Document newDocument()
//package com.java2s; /*/*from ww w . j a va2 s .c o m*/ Copyright (C) 2009-2013 Bengt Martensson. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/. */ import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.validation.Schema; import org.w3c.dom.Document; import org.xml.sax.SAXException; public class Main { public static Document newDocument(boolean isNamespaceAware) { try { DocumentBuilder builder = newDocumentBuilder(null, isNamespaceAware, false); return builder.newDocument(); } catch (SAXException ex) { // should never happen return null; } } public static Document newDocument() { return newDocument(false); } private static DocumentBuilder newDocumentBuilder(Schema schema, boolean isNamespaceAware, boolean isXIncludeAware) throws SAXException { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); factory.setNamespaceAware(isNamespaceAware); factory.setXIncludeAware(isXIncludeAware); if (schema != null) { factory.setSchema(schema); factory.setValidating(false); } DocumentBuilder builder = null; try { builder = factory.newDocumentBuilder(); } catch (ParserConfigurationException ex) { // there is something seriously wrong throw new RuntimeException(ex); } return builder; } }