/*

 * Copyright (c) 2010, 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 6645197

 * @run main/othervm -Xmx5m TemporarySelector

 * @summary Timed read with socket adaptor throws ClosedSelectorException if temporary selector GC'ed.

 */

import java.io.IOException;

import java.net.InetSocketAddress;

import java.net.ServerSocket;

import java.net.Socket;

import java.nio.channels.ServerSocketChannel;

import java.nio.channels.SocketChannel;

public class TemporarySelector {

    static volatile boolean done = false;

    public static void main(String[] args) throws Exception {

        Runnable r = new Runnable() {

            public void run() {

                while (!done) {

                    System.gc();

                    try {

                        Thread.sleep(1000);

                    } catch (Exception e) {

                    }

                }

            }

        };

        try {

            // Create a server socket that will open and accept on loopback connection

            ServerSocketChannel ssc =  ServerSocketChannel.open();

            final ServerSocket ss =  ssc.socket();

            ss.bind(new InetSocketAddress(0));

            int localPort = ss.getLocalPort();

            // Create a client socket that will connect and read

            System.out.println("Connecting to server socket");

            System.out.flush();

            SocketChannel channel = SocketChannel.open(new InetSocketAddress("localhost", localPort));

            System.out.println("Connected to server socket");

            System.out.flush();

            // Create a thread to try and cause the GC to run

            Thread t = new Thread(r);

            t.start();

            byte[] buffer = new byte[500];

            System.out.println("Reading from socket input stream");

            System.out.flush();

            Socket socket = channel.socket();

            socket.setSoTimeout(10000);  // The timeout must be set

            // to trigger this bug

            try {

                socket.getInputStream().read(buffer);

            } catch (java.net.SocketTimeoutException ste) {

                // no java.nio.channels.ClosedSelectorException

            }

        } finally {

            done = true;

        }

    }

}