/*

 * Copyright 2008-2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

import java.util.concurrent.ThreadFactory;

import java.util.*;

public class MyThreadFactory implements ThreadFactory {

    private static final Set<Thread> threads = new HashSet<Thread>();

    static boolean created(Thread t) {

        synchronized (threads) {

            return threads.contains(t);

        }

    }

    public MyThreadFactory() {

    }

    @Override

    public Thread newThread(Runnable r) {

        Thread t = new Thread(r);

        t.setDaemon(true);

        synchronized (threads) {

            threads.add(t);

        }

        return t;

    }

}