Here you can find the source of isNullOrEmpty(Node node)
public static boolean isNullOrEmpty(Node node)
//package com.java2s; /******************************************************************************* * Copyright (c) 2007-2013 Red Hat, Inc. * Distributed under license by Red Hat, Inc. All rights reserved. * This program is made available under the terms of the * Eclipse Public License v1.0 which accompanies this distribution, * and is available at http://www.eclipse.org/legal/epl-v10.html * * Contributor://from www .ja v a2 s. co m * Red Hat, Inc. - initial API and implementation ******************************************************************************/ import org.w3c.dom.Node; public class Main { public static boolean isNullOrEmpty(String s) { return s == null || s.trim().isEmpty(); } public static boolean isNullOrEmpty(Node node) { return node == null || node.getTextContent().trim().isEmpty(); } }