test/java/net/DatagramSocket/ReportSocketClosed.java

/*
 * Copyright (c) 1999, 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 4190513
 * @summary Make sure operating on a closed
 *     DatagramSocket throws the appropriate exception
 */

import java.net.*;

public class ReportSocketClosed {
    public static void main(String[] args) throws Exception {
        DatagramSocket soc;
        InetAddress sin = null;
        byte[]  array = {21,22,23};

        try {
            soc = new DatagramSocket(4001);
            sin = InetAddress.getLocalHost();
            soc.close();
        } catch (Exception e) {
            throw new Exception("Got unexpected exception" + e);
        }

        try {
            soc.receive(new DatagramPacket(array, array.length));
        } catch (Exception e2) {
            // We expect a SocketException here.
            // If we get any other exceptions, the test fails.
            if (e2 instanceof SocketException)
                return;
            else
                throw e2;
        }
    }
}