| /* |
| * Copyright (c) 2012, 2017, 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 7132924 |
| * @key intermittent |
| * @summary Test DatagramChannel.disconnect when DatagramChannel is connected to an IPv4 socket |
| * @run main Disconnect |
| * @run main/othervm -Djava.net.preferIPv4Stack=true Disconnect |
| */ |
| |
| import java.net.*; |
| import java.nio.*; |
| import java.nio.channels.*; |
| import java.io.IOException; |
| |
| public class Disconnect { |
| public static void main(String[] args) throws IOException { |
| // test with default protocol family |
| try (DatagramChannel dc = DatagramChannel.open()) { |
| test(dc); |
| test(dc); |
| } |
| |
| // test with IPv4 only |
| try (DatagramChannel dc = DatagramChannel.open(StandardProtocolFamily.INET)) { |
| test(dc); |
| test(dc); |
| } |
| } |
| |
| /** |
| * Connect DatagramChannel to a server, write a datagram and disconnect. Invoke |
| * a second or subsequent time with the same DatagramChannel instance to check |
| * that disconnect works as expected. |
| */ |
| static void test(DatagramChannel dc) throws IOException { |
| try (DatagramChannel server = DatagramChannel.open()) { |
| server.bind(new InetSocketAddress(0)); |
| |
| InetAddress lh = InetAddress.getLocalHost(); |
| dc.connect(new InetSocketAddress(lh, server.socket().getLocalPort())); |
| |
| dc.write(ByteBuffer.wrap("hello".getBytes())); |
| |
| ByteBuffer bb = ByteBuffer.allocate(100); |
| server.receive(bb); |
| |
| dc.disconnect(); |
| |
| try { |
| dc.write(ByteBuffer.wrap("another message".getBytes())); |
| throw new RuntimeException("write should fail, not connected"); |
| } catch (NotYetConnectedException expected) { |
| } |
| } |
| } |
| } |