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1 /* |
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2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /* @test |
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25 * @library /test/lib |
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26 * @summary Test DatagramChannel local address after disconnect. |
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27 * @requires (os.family != "mac") |
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28 * @run testng/othervm AddressesAfterDisconnect |
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29 * @run testng/othervm -Djava.net.preferIPv6Addresses=true AddressesAfterDisconnect |
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30 * @run testng/othervm -Djava.net.preferIPv4Stack=true AddressesAfterDisconnect |
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31 */ |
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32 |
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33 import jdk.test.lib.net.IPSupport; |
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34 |
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35 import java.io.IOException; |
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36 import java.net.InetAddress; |
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37 import java.net.InetSocketAddress; |
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38 import java.net.SocketAddress; |
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39 import java.net.StandardProtocolFamily; |
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40 import java.nio.channels.DatagramChannel; |
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41 |
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42 import org.testng.annotations.Test; |
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43 import static org.testng.Assert.assertEquals; |
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44 import static org.testng.Assert.assertTrue; |
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45 import static org.testng.Assert.assertFalse; |
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46 |
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47 public class AddressesAfterDisconnect { |
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48 |
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49 public static void main(String[] args) throws IOException { |
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50 new AddressesAfterDisconnect().execute(); |
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51 } |
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52 |
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53 @Test |
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54 public void execute() throws IOException { |
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55 IPSupport.throwSkippedExceptionIfNonOperational(); |
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56 boolean preferIPv6 = Boolean.getBoolean("java.net.preferIPv6Addresses"); |
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57 |
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58 // test with default protocol family |
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59 try (DatagramChannel dc = DatagramChannel.open()) { |
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60 System.out.println("Test with default"); |
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61 dc.bind(new InetSocketAddress(InetAddress.getLoopbackAddress(), 0)); |
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62 test(dc); |
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63 test(dc); |
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64 } |
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65 |
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66 if (IPSupport.hasIPv6()) { |
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67 // test with IPv6 only |
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68 System.out.println("Test with IPv6 only"); |
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69 try (DatagramChannel dc = DatagramChannel.open(StandardProtocolFamily.INET6)) { |
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70 dc.bind(new InetSocketAddress(InetAddress.getLoopbackAddress(), 0)); |
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71 test(dc); |
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72 test(dc); |
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73 } |
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74 } |
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75 |
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76 if (IPSupport.hasIPv4() && !preferIPv6) { |
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77 // test with IPv4 only |
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78 System.out.println("Test with IPv4 only"); |
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79 try (DatagramChannel dc = DatagramChannel.open(StandardProtocolFamily.INET)) { |
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80 dc.bind(new InetSocketAddress(InetAddress.getLoopbackAddress(), 0)); |
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81 test(dc); |
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82 test(dc); |
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83 } |
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84 } |
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85 } |
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86 |
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87 /** |
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88 * Connect DatagramChannel to a server, write a datagram and disconnect. Invoke |
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89 * a second or subsequent time with the same DatagramChannel instance to check |
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90 * that disconnect works as expected. |
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91 */ |
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92 static void test(DatagramChannel dc) throws IOException { |
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93 SocketAddress local = dc.getLocalAddress(); |
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94 try (DatagramChannel server = DatagramChannel.open()) { |
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95 server.bind(new InetSocketAddress(InetAddress.getLoopbackAddress(), 0)); |
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96 SocketAddress remote = server.getLocalAddress(); |
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97 dc.connect(remote); |
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98 assertTrue(dc.isConnected()); |
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99 // comment the following two lines on OS X to see JDK-8231259 |
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100 assertEquals(dc.getLocalAddress(), local, "local address after connect"); |
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101 assertEquals(dc.getRemoteAddress(), remote, "remote address after connect"); |
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102 dc.disconnect(); |
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103 assertFalse(dc.isConnected()); |
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104 assertEquals(dc.getLocalAddress(), local, "local address after disconnect"); |
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105 assertEquals(dc.getRemoteAddress(), null, "remote address after disconnect"); |
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106 } |
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107 } |
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108 |
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109 } |