1 /* 2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 6964714 26 * @run main/othervm -Djava.net.preferIPv4Stack=true IPv4Only 27 * @summary Test the networkinterface listing with java.net.preferIPv4Stack=true. 28 */ 29 30 31 import java.net.*; 32 import java.util.*; 33 34 35 public class IPv4Only { 36 public static void main(String[] args) throws Exception { 37 Enumeration<NetworkInterface> nifs = NetworkInterface.getNetworkInterfaces(); 38 while (nifs.hasMoreElements()) { 39 NetworkInterface nif = nifs.nextElement(); 40 Enumeration<InetAddress> addrs = nif.getInetAddresses(); 41 while (addrs.hasMoreElements()) { 42 InetAddress hostAddr = addrs.nextElement(); 43 if ( hostAddr instanceof Inet6Address ){ 44 throw new RuntimeException( "NetworkInterfaceV6List failed - found v6 address " + hostAddr.getHostAddress() ); 45 } 46 } 47 } 48 } 49 }