/*

 * Copyright (c) 2008, 2018, 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 4446672

 *

 * @summary converted from VM Testbase jit/regression/b4446672.

 * VM Testbase keywords: [jit, quick]

 *

 * @library /vmTestbase

 *          /test/lib

 * @run driver jdk.test.lib.FileInstaller . .

 * @run main/othervm jit.regression.b4446672.b4446672

 */

package jit.regression.b4446672;

import nsk.share.TestFailure;

public class b4446672 {

  public static void main(String[] args) {

    new b4446672().run();

  }

  private void run() {

    new GCThread().start();

    new TestThreadStarter().start();

    while (!gcing) Thread.yield();

    while (!starting) Thread.yield();

      done = true;

    while (!testing) Thread.yield();

  }

  class TestThread extends Thread {

    public void run() {

      System.out.println ("TestThread.");

      testing = true;

    }

  }

  class TestThreadStarter extends Thread {

    public void run() {

      System.out.println ("TestThreadStarter.");

      starting=true;

      testThread.start();

    }

  }

  class GCThread extends Thread {

    public void run() {

      System.out.println ("GCThread run.");

      synchronized (testThread) {

        System.out.println ("GCThread synchronized.");

              while (!done) {

                gcing=true;

                System.gc();

              }

            }

        System.out.println ("GCThread done.");

    }

  }

  TestThread testThread = new TestThread();

  boolean done = false;

  boolean gcing = false;

  boolean testing = false;

  boolean starting = false;

}