/*

 * Copyright (c) 2009, 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 6589834

 * @summary deoptimization problem with -XX:+DeoptimizeALot

 *

 */

/***************************************************************************************

NOTE: The bug shows up (with several "Bug!" message) even without the

      flag -XX:+DeoptimizeALot. In a debug build, you may want to try

      the flags -XX:+VerifyStack and -XX:+DeoptimizeALot to get more information.

****************************************************************************************/

import java.lang.reflect.Constructor;

public class Test_ia32 {

    public static int NUM_THREADS = 100;

    public static int CLONE_LENGTH = 1000;

    public static void main(String[] args) throws InterruptedException, ClassNotFoundException {

        Reflector[] threads = new Reflector[NUM_THREADS];

        for (int i = 0; i < threads.length; i++) {

            threads[i] = new Reflector();

            threads[i].start();

        }

        System.out.println("Give Reflector.run() some time to compile...");

        Thread.sleep(5000);

        System.out.println("Load RMISecurityException causing run() deoptimization");

        ClassLoader.getSystemClassLoader().loadClass("java.rmi.RMISecurityException");

        for (Reflector thread : threads)

            thread.requestStop();

        for (Reflector thread : threads)

            try {

                thread.join();

            } catch (InterruptedException e) {

                System.out.println(e);

            }

    }

}

class Reflector extends Thread {

    volatile boolean _doSpin = true;

    Test_ia32[] _tests;

    Reflector() {

        _tests = new Test_ia32[Test_ia32.CLONE_LENGTH];

        for (int i = 0; i < _tests.length; i++) {

            _tests[i] = new Test_ia32();

        }

    }

    static int g(int i1, int i2, Test_ia32[] arr, int i3, int i4) {

        if (!(i1==1 && i2==2 && i3==3 && i4==4)) {

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

        }

        return arr.length;

    }

    static int f(Test_ia32[] arr) {

        return g(1, 2, arr.clone(), 3, 4);

    }

    @Override

    public void run() {

        Constructor[] ctrs = null;

        Class<Test_ia32> klass = Test_ia32.class;

        try {

            ctrs = klass.getConstructors();

        } catch (SecurityException e) {

            System.out.println(e);

        }

        try {

            while (_doSpin) {

                if (f(_tests) < 0)

                    System.out.println("return value usage");

            }

        } catch (NullPointerException e) {

            e.printStackTrace();

        }

        System.out.println(this + " - stopped.");

    }

    public void requestStop() {

        System.out.println(this + " - stop requested.");

        _doSpin = false;

    }

}