jdk8-mips64-public/hotspot: test/gc/TestMemoryMXBeansAndPoolsPresence.java@8c95980d0b66

     1 /*

     2  * Copyright (c) 2017, 2019, 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.

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    24 /* @test TestMemoryMXBeansAndPoolsPresence

    25  * @key gc

    26  * @bug 8191564

    27  * @summary Tests that GarbageCollectorMXBeans and GC MemoryPools are created.

    28  * @library /testlibrary

    29  * @requires vm.gc == null

    30  * @run main/othervm -XX:+UseParallelGC TestMemoryMXBeansAndPoolsPresence Parallel

    31  * @run main/othervm -XX:+UseSerialGC TestMemoryMXBeansAndPoolsPresence Serial

    32  * @run main/othervm -XX:+UseConcMarkSweepGC TestMemoryMXBeansAndPoolsPresence CMS

    33  * @run main/othervm -XX:+UseG1GC TestMemoryMXBeansAndPoolsPresence G1

    34  */

    36 import java.util.List;

    37 import java.util.ArrayList;

    38 import java.lang.management.*;

    39 import java.util.stream.*;

    41 import com.oracle.java.testlibrary.Asserts;

    43 class GCBeanDescription {

    44     public String name;

    45     public String[] poolNames;

    47     public GCBeanDescription(String name, String[] poolNames) {

    48         this.name = name;

    49         this.poolNames = poolNames;

    50     }

    51 }

    53 public class TestMemoryMXBeansAndPoolsPresence {

    54     public static void test(GCBeanDescription... expectedBeans) {

    55         List<MemoryPoolMXBean> memoryPools = ManagementFactory.getMemoryPoolMXBeans();

    57         List<GarbageCollectorMXBean> gcBeans = ManagementFactory.getGarbageCollectorMXBeans();

    58         Asserts.assertEQ(expectedBeans.length, gcBeans.size());

    60         for (GCBeanDescription desc : expectedBeans) {

    61             List<GarbageCollectorMXBean> beans = gcBeans.stream()

    62                                                         .filter(b -> b.getName().equals(desc.name))

    63                                                         .collect(Collectors.toList());

    64             Asserts.assertEQ(beans.size(), 1);

    66             GarbageCollectorMXBean bean = beans.get(0);

    67             Asserts.assertEQ(desc.name, bean.getName());

    69             String[] pools = bean.getMemoryPoolNames();

    70             Asserts.assertEQ(desc.poolNames.length, pools.length);

    71             for (int i = 0; i < desc.poolNames.length; i++) {

    72                 Asserts.assertEQ(desc.poolNames[i], pools[i]);

    73             }

    74         }

    75     }

    77     public static void main(String[] args) {

    78         switch (args[0]) {

    79             case "G1":

    80                 test(new GCBeanDescription("G1 Young Generation", new String[] {"G1 Eden Space", "G1 Survivor Space", "G1 Old Gen"}),

    81                      new GCBeanDescription("G1 Old Generation",   new String[] {"G1 Eden Space", "G1 Survivor Space", "G1 Old Gen"}));

    82                 break;

    83             case "CMS":

    84                 test(new GCBeanDescription("ParNew",              new String[] {"Par Eden Space", "Par Survivor Space"}),

    85                      new GCBeanDescription("ConcurrentMarkSweep", new String[] {"Par Eden Space", "Par Survivor Space", "CMS Old Gen"}));

    86                 break;

    87             case "Parallel":

    88                 test(new GCBeanDescription("PS Scavenge",         new String[] {"PS Eden Space", "PS Survivor Space"}),

    89                      new GCBeanDescription("PS MarkSweep",        new String[] {"PS Eden Space", "PS Survivor Space", "PS Old Gen"}));

    90                 break;

    91             case "Serial":

    92                 test(new GCBeanDescription("Copy",              new String[] {"Eden Space", "Survivor Space"}),

    93                      new GCBeanDescription("MarkSweepCompact",  new String[] {"Eden Space", "Survivor Space", "Tenured Gen"}));

    94                 break;

    95             default:

    96                 Asserts.assertTrue(false);

    97                 break;

    99         }

   100     }

   101 }

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