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Source Code of InheritedChannelNotServerSocket

/*
* Copyright (c) 2005, 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 6261402
* @summary If rmid has an inherited channel that is not a server
* socket (such as it if was started using rsh/rcmd), then it should
* function normally.
* @author Peter Jones
*
* @library ../../testlibrary
* @build RMID ActivationLibrary
* @build InheritedChannelNotServerSocket
* @run main/othervm/timeout=240 -Djava.rmi.activation.port=5398
*     InheritedChannelNotServerSocket
*/

import java.io.IOException;
import java.net.Socket;
import java.nio.channels.Channel;
import java.nio.channels.DatagramChannel;
import java.nio.channels.Pipe;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.nio.channels.spi.AbstractSelector;
import java.nio.channels.spi.SelectorProvider;
import java.rmi.NotBoundException;
import java.rmi.Remote;
import java.rmi.RemoteException;
import java.rmi.activation.ActivationGroup;
import java.rmi.activation.ActivationSystem;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.UnicastRemoteObject;

public class InheritedChannelNotServerSocket {

    private static final int PORT = 5398;
    private static final Object lock = new Object();
    private static boolean notified = false;

    private InheritedChannelNotServerSocket() { }

    public interface Callback extends Remote {
        void notifyTest() throws RemoteException;
    }

    public static class CallbackImpl implements Callback {
        CallbackImpl() { }
        public void notifyTest() {
            synchronized (lock) {
                notified = true;
                System.err.println("notification received.");
                lock.notifyAll();
            }
        }
    }

    public static void main(String[] args) throws Exception {
        System.err.println("\nRegression test for bug 6261402\n");

        RMID rmid = null;
        Callback obj = null;
        try {
            /*
             * Export callback object and bind in registry.
             */
            System.err.println("export callback object and bind in registry");
            obj = new CallbackImpl();
            Callback proxy =
                (Callback) UnicastRemoteObject.exportObject(obj, 0);
            Registry registry =
                LocateRegistry.createRegistry(TestLibrary.REGISTRY_PORT);
            registry.bind("Callback", proxy);

            /*
             * Start rmid.
             */
            System.err.println("start rmid with inherited channel");
            RMID.removeLog();
            rmid = RMID.createRMID(System.out, System.err, true, true, PORT);
            rmid.addOptions(new String[]{
                "-Djava.nio.channels.spi.SelectorProvider=" +
                "InheritedChannelNotServerSocket$SP"});
            rmid.start();

            /*
             * Get activation system and wait to be notified via callback
             * from rmid's selector provider.
             */
            System.err.println("get activation system");
            ActivationSystem system = ActivationGroup.getSystem();
            System.err.println("ActivationSystem = " + system);
            synchronized (lock) {
                while (!notified) {
                    lock.wait();
                }
            }
            System.err.println("TEST PASSED");
        } finally {
            if (obj != null) {
                UnicastRemoteObject.unexportObject(obj, true);
            }
            ActivationLibrary.rmidCleanup(rmid, PORT);
        }
    }

    public static class SP extends SelectorProvider {
        private final SelectorProvider provider;
        private volatile SocketChannel channel = null;

        public SP() {
            provider = sun.nio.ch.DefaultSelectorProvider.create();
        }

        public DatagramChannel openDatagramChannel() throws IOException {
            return provider.openDatagramChannel();
        }

        public Pipe openPipe() throws IOException {
            return provider.openPipe();
        }

        public AbstractSelector openSelector() throws IOException {
            return provider.openSelector();
        }

        public ServerSocketChannel openServerSocketChannel()
            throws IOException
        {
            return provider.openServerSocketChannel();
        }

        public SocketChannel openSocketChannel() throws IOException {
            return provider.openSocketChannel();
        }

        public synchronized Channel inheritedChannel() throws IOException {
            System.err.println("SP.inheritedChannel");
            if (channel == null) {
                channel = SocketChannel.open();
                Socket socket = channel.socket();
                System.err.println("socket = " + socket);

                /*
                 * Notify test that inherited channel was created.
                 */
                try {
                    System.err.println("notify test...");
                    Registry registry =
                        LocateRegistry.getRegistry(TestLibrary.REGISTRY_PORT);
                    Callback obj = (Callback) registry.lookup("Callback");
                    obj.notifyTest();
                } catch (NotBoundException nbe) {
                    throw (IOException)
                        new IOException("callback object not bound").
                            initCause(nbe);
                }
            }
            return channel;
        }
    }
}
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