/*

 * Copyright (c) 2003, 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 4950216 4089701 4956093

 * @summary Test for premature destruction of daemon threadgroups

 */

public class Daemon {

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

        ThreadGroup tg = new ThreadGroup("madbot-threads");

        Thread myThread = new MadThread(tg,"mad");

        ThreadGroup aGroup = new ThreadGroup(tg, "ness");

        tg.setDaemon(true);

        if (tg.activeCount() != 0)

            throw new RuntimeException("activeCount");

        aGroup.destroy();

        if (tg.isDestroyed())

            throw new RuntimeException("destroy");

        try {

            Thread anotherThread = new MadThread(aGroup, "bot");

            throw new RuntimeException("illegal");

        } catch (IllegalThreadStateException itse) {

            // Correct result

        }

    }

}

class MadThread extends Thread {

    String name;

    MadThread(ThreadGroup tg, String name) {

        super(tg, name);

        this.name = name;

    }

    public void run() {

        System.out.println("me run "+name);

    }

}