Here you can find the source of newDocument()
public static Document newDocument()
//package com.java2s; /*// w w w . j a v a 2 s . c o m * Copyright 2014 Bernd Vogt and others. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import org.w3c.dom.Document; public class Main { public static Document newDocument() { final DocumentBuilderFactory dbfac = DocumentBuilderFactory.newInstance(); final DocumentBuilder docBuilder; try { docBuilder = dbfac.newDocumentBuilder(); } catch (ParserConfigurationException e) { throw new IllegalStateException(e); } final Document document = docBuilder.newDocument(); document.setXmlStandalone(true); return document; } private static DocumentBuilder newDocumentBuilder() throws ParserConfigurationException { final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); factory.setIgnoringComments(false); factory.setIgnoringElementContentWhitespace(true); return factory.newDocumentBuilder(); } }