| /* |
| * Copyright (c) 2002, 2012, 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 |
| * @summary Test DatagramChannel's receive when port unreachable |
| * @author Mike McCloskey |
| */ |
| |
| import java.io.*; |
| import java.net.*; |
| import java.nio.*; |
| import java.nio.channels.*; |
| |
| public class Refused { |
| |
| static ByteBuffer outBuf = ByteBuffer.allocateDirect(100); |
| static ByteBuffer inBuf = ByteBuffer.allocateDirect(100); |
| static DatagramChannel client; |
| static DatagramChannel server; |
| static InetSocketAddress isa; |
| |
| public static void main(String[] args) throws Exception { |
| outBuf.put("Blah Blah".getBytes()); |
| outBuf.flip(); |
| test1(); |
| |
| // This test has been disabled because there are many circumstances |
| // under which no ICMP port unreachable packets are received |
| // See http://java.sun.com/j2se/1.4/networking-relnotes.html |
| if ((args.length > 0) && (args[0].equals("test2"))) { |
| outBuf.rewind(); |
| test2(); |
| } |
| } |
| |
| public static void setup() throws Exception { |
| client = DatagramChannel.open(); |
| server = DatagramChannel.open(); |
| |
| client.socket().bind((SocketAddress)null); |
| server.socket().bind((SocketAddress)null); |
| |
| client.configureBlocking(false); |
| server.configureBlocking(false); |
| |
| InetAddress address = InetAddress.getLocalHost(); |
| int port = client.socket().getLocalPort(); |
| isa = new InetSocketAddress(address, port); |
| } |
| |
| // Since this is not connected no PortUnreachableException should be thrown |
| public static void test1() throws Exception { |
| setup(); |
| |
| server.send(outBuf, isa); |
| server.receive(inBuf); |
| |
| client.close(); |
| |
| outBuf.rewind(); |
| server.send(outBuf, isa); |
| server.receive(inBuf); |
| |
| server.close(); |
| } |
| |
| // Test the connected case to see if PUE is thrown |
| public static void test2() throws Exception { |
| |
| setup(); |
| server.configureBlocking(true); |
| server.connect(isa); |
| server.configureBlocking(false); |
| outBuf.rewind(); |
| server.write(outBuf); |
| server.receive(inBuf); |
| |
| client.close(); |
| Thread.sleep(2000); |
| outBuf.rewind(); |
| |
| try { |
| server.write(outBuf); |
| Thread.sleep(2000); |
| inBuf.clear(); |
| server.read(inBuf); |
| } catch (PortUnreachableException pue) { |
| System.err.println("received PUE"); |
| } |
| server.close(); |
| } |
| } |