| /* |
| * Copyright (c) 2011, 2013, 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.io.ByteArrayOutputStream; |
| import java.io.PrintStream; |
| import java.net.InetAddress; |
| import java.net.NetworkInterface; |
| import java.net.SocketException; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| |
| public class Equals { |
| |
| static final boolean isWindows = System.getProperty("os.name").startsWith("Windows"); |
| |
| public static void main(String args[]) throws Exception { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| PrintStream bufferedOut = new PrintStream(baos); |
| |
| Enumeration<NetworkInterface> nifs1 = NetworkInterface.getNetworkInterfaces(); |
| HashMap<String,Integer> hashes = new HashMap<>(); |
| HashMap<String,NetworkInterface> nicMap = new HashMap<>(); |
| |
| while (nifs1.hasMoreElements()) { |
| NetworkInterface ni = nifs1.nextElement(); |
| hashes.put(ni.getName(),ni.hashCode()); |
| nicMap.put(ni.getName(),ni); |
| displayInterfaceInformation(ni, bufferedOut); |
| bufferedOut.flush(); |
| } |
| |
| System.setSecurityManager(new SecurityManager()); |
| |
| Enumeration<NetworkInterface> nifs2 = NetworkInterface.getNetworkInterfaces(); |
| while (nifs2.hasMoreElements()) { |
| NetworkInterface ni = nifs2.nextElement(); |
| |
| // JDK-8022963, Skip (Windows)Teredo Tunneling Pseudo-Interface |
| String dName = ni.getDisplayName(); |
| if (isWindows && dName != null && dName.contains("Teredo")) |
| continue; |
| |
| NetworkInterface niOrig = nicMap.get(ni.getName()); |
| |
| int h = ni.hashCode(); |
| if (h != hashes.get(ni.getName())) { |
| System.out.printf("%nSystem information:%n"); |
| System.out.printf("%s", baos.toString("UTF8")); |
| System.out.printf("%nni.hashCode() returned %d, expected %d, for:%n", |
| h, hashes.get(ni.getName())); |
| displayInterfaceInformation(ni, System.out); |
| throw new RuntimeException("Hashcodes different for " + |
| ni.getName()); |
| } |
| if (!ni.equals(niOrig)) { |
| System.out.printf("%nSystem information:%n"); |
| System.out.printf("%s", baos.toString("UTF8")); |
| System.out.printf("%nExpected the following interfaces to be the same:%n"); |
| displayInterfaceInformation(niOrig, System.out); |
| displayInterfaceInformation(ni, System.out); |
| throw new RuntimeException("equality different for " + |
| ni.getName()); |
| } |
| } |
| } |
| |
| static void displayInterfaceInformation(NetworkInterface netint, |
| PrintStream out) throws SocketException { |
| out.printf("Display name: %s%n", netint.getDisplayName()); |
| out.printf("Name: %s%n", netint.getName()); |
| Enumeration<InetAddress> inetAddresses = netint.getInetAddresses(); |
| |
| for (InetAddress inetAddress : Collections.list(inetAddresses)) |
| out.printf("InetAddress: %s%n", inetAddress); |
| |
| out.printf("Up? %s%n", netint.isUp()); |
| out.printf("Loopback? %s%n", netint.isLoopback()); |
| out.printf("PointToPoint? %s%n", netint.isPointToPoint()); |
| out.printf("Supports multicast? %s%n", netint.supportsMulticast()); |
| out.printf("Virtual? %s%n", netint.isVirtual()); |
| out.printf("Hardware address: %s%n", |
| Arrays.toString(netint.getHardwareAddress())); |
| out.printf("MTU: %s%n", netint.getMTU()); |
| out.printf("Index: %s%n", netint.getIndex()); |
| out.printf("%n"); |
| } |
| } |
| |