/*

 * 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.

 *

 */

/* @test

 * @bug 4953599

 * @run main/timeout=15 CheckLocking

 * @summary check if setInterest blocks while in select

 */

import java.nio.*;

import java.nio.channels.*;

import java.nio.channels.spi.*;

import java.net.*;

public class CheckLocking implements Runnable {

    private static Selector selector;

    public CheckLocking() {

    }

    public void run() {

        try {

            selector.select();

        } catch (Throwable th) {

            th.printStackTrace();

        }

    }

    private static void doSelect() throws Exception {

        Thread thread = new Thread(new CheckLocking());

        thread.start();

        Thread.sleep(1000);

    }

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

        selector = SelectorProvider.provider().openSelector();

        SocketChannel sc = SocketChannel.open();

        sc.configureBlocking(false);

        SelectionKey sk = sc.register(selector,0,null);

        doSelect();

        sk.interestOps(SelectionKey.OP_READ);

        selector.wakeup();

    }

}