85 lines
3.0 KiB
Java
85 lines
3.0 KiB
Java
/*
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* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 5087907
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* @summary InetAddress.getAllByName does not obey setting of java.net.preferIPv6Addresses
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* @run main/othervm -Djava.net.preferIPv6Addresses=false B5087907
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* @run main/othervm -Djava.net.preferIPv6Addresses=true B5087907
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* @run main/othervm B5087907
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*/
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import java.net.*;
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public class B5087907 {
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public static void main(String args[]) {
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InetAddress lh = null;
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InetAddress addrs[] = null;
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try {
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lh = InetAddress.getByName("localhost");
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addrs = InetAddress.getAllByName("localhost");
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} catch (UnknownHostException e) {
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System.out.println ("Cant lookup localhost. cant run test");
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return;
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}
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boolean hasIPv4Address = false;
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boolean hasIPv6Address = false;
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for (InetAddress addr: addrs) {
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if (addr instanceof Inet4Address) {
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hasIPv4Address = true;
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}
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if (addr instanceof Inet6Address) {
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hasIPv6Address = true;
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}
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if (hasIPv4Address && hasIPv6Address) {
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break;
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}
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}
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String prop = System.getProperty("java.net.preferIPv6Addresses");
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boolean preferIPv6Addresses = (prop == null) ? false : prop.equals("true");
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System.out.println("java.net.preferIPv6Addresses: " + preferIPv6Addresses);
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System.out.println("localhost resolves to:");
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for (InetAddress addr: addrs) {
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System.out.println(" " + addr);
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}
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System.out.println("InetAddres.getByName returned: " + lh);
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boolean failed = false;
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if (preferIPv6Addresses && hasIPv6Address) {
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if (!(lh instanceof Inet6Address)) failed = true;
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}
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if (!preferIPv6Addresses && hasIPv4Address) {
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if (!(lh instanceof Inet4Address)) failed = true;
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}
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if (failed) {
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throw new RuntimeException("Test failed!");
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}
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}
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}
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