1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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13  * accompanied this code).
14  *
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22  */
23 
24 /* @test
25  * @bug 6431343
26  * @summary Test that DatagramChannel.getLocalAddress returns the right local
27  *    address after connect/disconnect.
28  * @run main/othervm -Djdk.net.usePlainDatagramSocketImpl=false ChangingAddress
29  */
30 import java.net.*;
31 import java.nio.channels.DatagramChannel;
32 
33 public class ChangingAddress {
34 
35     // Checks that the given DatagramSocket and DatagramChannel are bound to the
36     // same local address.
check(DatagramSocket ds, DatagramChannel dc)37     static void check(DatagramSocket ds, DatagramChannel dc) {
38         InetAddress expected = ds.getLocalAddress();
39         InetAddress actual = dc.socket().getLocalAddress();
40         // okay if one bound to 0.0.0.0 and the other to ::0
41         if ((expected.isAnyLocalAddress() != actual.isAnyLocalAddress()) &&
42             !expected.equals(actual))
43         {
44             throw new RuntimeException("Expected: " + expected + ", actual: " + actual);
45         }
46     }
47 
main(String[] args)48     public static void main(String[] args) throws Exception {
49         InetAddress lh = InetAddress.getLocalHost();
50         SocketAddress remote = new InetSocketAddress(lh, 1234);
51 
52         DatagramSocket ds = null;
53         DatagramChannel dc = null;
54         try {
55 
56             ds = new DatagramSocket();
57             dc = DatagramChannel.open().bind(new InetSocketAddress(0));
58             check(ds, dc);
59 
60             ds.connect(remote);
61             dc.connect(remote);
62             check(ds, dc);
63 
64             ds.disconnect();
65             dc.disconnect();
66             check(ds, dc);
67 
68             // repeat tests using socket adapter
69             ds.connect(remote);
70             dc.socket().connect(remote);
71             check(ds, dc);
72 
73             ds.disconnect();
74             dc.socket().disconnect();
75             check(ds, dc);
76 
77        } finally {
78             if (ds != null) ds.close();
79             if (dc != null) dc.close();
80        }
81     }
82 }
83