Here you can find the source of parse(InputStream is)
public static Document parse(InputStream is) throws SAXException, IOException, ParserConfigurationException
//package com.java2s; /**/* ww w . ja v a 2 s . c om*/ * Copyright 2006 OCLC Online Computer Library Center 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 org.w3c.dom.Document; import org.xml.sax.SAXException; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import java.io.IOException; import java.io.InputStream; public class Main { private static DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance(); public static Document parse(InputStream is) throws SAXException, IOException, ParserConfigurationException { return getThreadedDocumentBuilder().parse(is); } public static DocumentBuilder getThreadedDocumentBuilder() throws ParserConfigurationException { return dbFactory.newDocumentBuilder(); } }