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

 *

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 *

 * 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.

 *

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 */

/*

 * @test

 * @bug 6224859

 * @summary JDWP: Mixing application suspends and debugger suspends can cause hangs

 * @comment converted from test/jdk/com/sun/jdi/MixedSuspendTest.sh

 *

 * @library /test/lib

 * @run main/othervm MixedSuspendTest

 */

import lib.jdb.JdbCommand;

import lib.jdb.JdbTest;

class MixedSuspendTarg extends Thread {

    static volatile boolean started = true;

    static String lock = "startLock";

    public static void main(String[] args){

        System.out.println("Howdy from MixedSuspendTarg");

        MixedSuspendTarg mytarg = new MixedSuspendTarg();

        synchronized(lock) {

            mytarg.start();

            try {

                lock.wait();

            } catch(InterruptedException ee) {

            }

        }

        mytarg.suspend();

        bkpt();

        System.out.println("Debuggee: resuming thread");

        // If the bug occurs, this resume hangs in the back-end

        mytarg.resume();

        System.out.println("Debuggee: resumed thread");

        synchronized(lock) {

            started = false;

        }

        System.out.println("Debuggee: exitting, started = " + started);

    }

    public void run() {

        synchronized(lock) {

            lock.notifyAll();

        }

        while (true) {

            synchronized(lock) {

                if (!started) {

                    break;

                }

                int i = 0;

            }

        }

        System.out.println("Debuggee: end of thread");

    }

    static void bkpt() {

        //System.out.println("bkpt reached, thread = " + this.getName());

        int i = 0;   // @1 breakpoint

    }

}

public class MixedSuspendTest extends JdbTest {

    public static void main(String argv[]) {

        new MixedSuspendTest().run();

    }

    private MixedSuspendTest() {

        super(DEBUGGEE_CLASS);

    }

    private static final String DEBUGGEE_CLASS = MixedSuspendTarg.class.getName();

    @Override

    protected void runCases() {

        setBreakpointsFromTestSource("MixedSuspendTest.java", 1);

        jdb.command(JdbCommand.run());

        jdb.command(JdbCommand.cont().allowExit());

        // This test fails by timing out.

    }

}