1 /*
   2  * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 /*
  26  * @test TestGCLockerWithG1
  27  * @key gc stress
  28  * @requires vm.gc.G1
  29  * @summary Stress G1's GC locker by calling GetPrimitiveArrayCritical while concurrently filling up old gen.
  30  * @run main/native/othervm/timeout=200 -Xlog:gc*=info -Xms1500m -Xmx1500m -XX:+UseG1GC -XX:-G1UseLegacyMonitoring TestGCLockerWithG1
  31  * @run main/native/othervm/timeout=200 -Xlog:gc*=info -Xms1500m -Xmx1500m -XX:+UseG1GC -XX:+G1UseLegacyMonitoring TestGCLockerWithG1
  32  */
  33 
  34 import java.lang.management.RuntimeMXBean;
  35 import java.lang.management.ManagementFactory;
  36 
  37 public class TestGCLockerWithG1 {
  38     public static void main(String[] args) {
  39         String[] testArgs = {"2", LegacyMonitoring.use() ? "G1 Old Gen" : "G1 Old Space"};
  40         TestGCLocker.main(testArgs);
  41     }
  42 
  43     public static class LegacyMonitoring {
  44         private static final boolean useLegacyMonitoring = getUseLegacyMonitoring();
  45         private static boolean getUseLegacyMonitoring() {
  46             return ManagementFactory.getRuntimeMXBean().getInputArguments().contains("-XX:+G1UseLegacyMonitoring");
  47         }
  48         public static boolean use() { return useLegacyMonitoring; }
  49     }
  50 }