/*

 * 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

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 */

/**

 * @test

 * @bug 4513488

 * @summary Test for JDI: Internal JDI helper threads should setDaemon(true)

 * @author Tim Bell

 *

 * @run build TestScaffold VMConnection TargetListener TargetAdapter

 * @run compile -g DebuggerThreadTest.java

 * @run driver DebuggerThreadTest

 */

import com.sun.jdi.*;

import com.sun.jdi.event.*;

import com.sun.jdi.request.*;

import java.util.*;

    /********** target program **********/

class DebuggerThreadTarg {

    public void ready() {

    }

    public static void main(String[] args){

        System.out.println("Howdy!");

        DebuggerThreadTarg targ = new DebuggerThreadTarg();

        targ.ready();

        System.out.println("Goodbye from DebuggerThreadTarg!");

    }

}

    /********** test program **********/

public class DebuggerThreadTest extends TestScaffold {

    DebuggerThreadTest (String args[]) {

        super(args);

    }

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

        new DebuggerThreadTest(args).startTests();

    }

    /*

     * Move to top ThreadGroup and dump all threads.

     */

    public void dumpThreads() {

        ThreadGroup tg = Thread.currentThread().getThreadGroup();

        ThreadGroup parent = tg.getParent();

        while (parent != null) {

            tg = parent;

            parent = tg.getParent();

        }

        int listThreads = tg.activeCount();

        Thread list[] = new Thread[listThreads * 2];

        int gotThreads = tg.enumerate(list, true);

        for (int i = 0; i < Math.min(gotThreads, list.length); i++){

            Thread t = list[i];

            System.out.println("Thread [" + i + "] group = '" +

                               groupName +

                               "' name = '" + t.getName() +

                               "' daemon = " + t.isDaemon());

            if (groupName.startsWith("JDI ") &&

                (! t.isDaemon())) {

                failure("FAIL: non-daemon thread '" + t.getName() +

                        "' found in ThreadGroup '" + groupName + "'");

            }

        }

    }

    protected void runTests() throws Exception {

        try {

            /*

             * Get to the top of ready()

             */

            startTo("DebuggerThreadTarg", "ready", "()V");

            dumpThreads();

            listenUntilVMDisconnect();

        } finally {

            /*

             * deal with results of test

             * if anything has called failure("foo") testFailed will be true

             */

            if (!testFailed) {

                println("DebuggerThreadTest: passed");

            } else {

                throw new Exception("DebuggerThreadTest: failed");

            }

        }

        return;

    }

}