1 /*

     2  * Copyright 2008-2009 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

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

    21  * have any questions.

    22  */

    23 

    24 import java.util.concurrent.ThreadFactory;

    25 import java.util.*;

    26 

    27 public class MyThreadFactory implements ThreadFactory {

    28 

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

    30 

    31     static boolean created(Thread t) {

    32         synchronized (threads) {

    33             return threads.contains(t);

    34         }

    35     }

    36 

    37     public MyThreadFactory() {

    38     }

    39 

    40     @Override

    41     public Thread newThread(Runnable r) {

    42         Thread t = new Thread(r);

    43         t.setDaemon(true);

    44         synchronized (threads) {

    45             threads.add(t);

    46         }

    47         return t;

    48     }

    49 }