/* * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* @test * @bug 7003398 * @run main/othervm Equals */ import java.net.NetworkInterface; import java.net.InetAddress; import java.util.Enumeration; import java.util.HashMap; public class Equals { public static void main(String args[]) throws Exception { Enumeration nifs1 = NetworkInterface.getNetworkInterfaces(); HashMap<String,Integer> hashes = new HashMap<>(); HashMap<String,NetworkInterface> nicMap = new HashMap<>(); while (nifs1.hasMoreElements()) { NetworkInterface ni = (NetworkInterface)nifs1.nextElement(); hashes.put(ni.getName(),ni.hashCode()); nicMap.put(ni.getName(),ni); } System.setSecurityManager(new SecurityManager()); Enumeration nifs2 = NetworkInterface.getNetworkInterfaces(); while (nifs2.hasMoreElements()) { NetworkInterface ni = (NetworkInterface)nifs2.nextElement(); NetworkInterface niOrig = nicMap.get(ni.getName()); int h = hashes.get(ni.getName()); if (h != ni.hashCode()) { throw new RuntimeException ("Hashcodes different for " + ni.getName()); } if (!ni.equals(niOrig)) { throw new RuntimeException ("equality different for " + ni.getName()); } } } }