| /* |
| * 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 Test6935022 |
| */ |
| |
| 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; |
| } |
| } |
| |