/*

 * Copyright (c) 2011, 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 6935022

 * @summary Server VM incorrectly breaks out of while loop

 *

 * @run main compiler.c2.Test6935022

 */

package compiler.c2;

public class Test6935022 {

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

        Test6935022 test = new Test6935022();

        int cnt = 0;

        while (cnt < 10000) {

            try {

                ++cnt;

                if ((cnt&1023) == 0)

                  System.out.println("Thread="+Thread.currentThread().getName() + " iteration: " + cnt);

                test.loop(2147483647, (cnt&1023));

            }

            catch (Exception e) {

                System.out.println("Caught on iteration " + cnt);

                e.printStackTrace();

                System.exit(97);

            }

        }

    }

    private void loop(int endingRow, int mask) throws Exception {

        int rows = 1;

        boolean next = true;

        while(rows <= endingRow && next) {

            rows++;

            if (rows == mask)

              System.out.println("Rows="+rows+", end="+endingRow+", next="+next);

            next = next(rows);

        }

        if (next)

            throw new Exception("Ended on rows(no rs): " + rows);

    }

    private boolean next(int rows) {

        return rows < 12;

    }

}