Here you can find the source of serialize(Document document, OutputStream out)
static void serialize(Document document, OutputStream out)
//package com.java2s; /*-/*from w w w . j a v a2 s . c o m*/ * #%L * Cosmos * %% * Copyright (C) 2012 - 2018 Andreas Veithen * %% * 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. * #L% */ import java.io.OutputStream; import org.w3c.dom.Document; import org.w3c.dom.ls.DOMImplementationLS; import org.w3c.dom.ls.LSOutput; import org.w3c.dom.ls.LSSerializer; public class Main { static void serialize(Document document, OutputStream out) { DOMImplementationLS ls = (DOMImplementationLS) document.getImplementation(); LSSerializer serializer = ls.createLSSerializer(); LSOutput output = ls.createLSOutput(); output.setByteStream(out); serializer.write(document, output); } }