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 import java.util.List; 25 import java.util.ArrayList; 26 import java.lang.management.*; 27 import static jdk.test.lib.Asserts.*; 28 import java.util.stream.*; 29 30 /* @test TestMemoryMXBeansAndPoolsPresence 31 * @bug 8191564 32 * @summary Tests that GarbageCollectorMXBeans and GC MemoryPools are created. 33 * @library /test/lib 34 * @modules java.base/jdk.internal.misc 35 * java.management 36 * @requires vm.gc == null 37 * @run main/othervm -XX:+UseG1GC -XX:-G1UseLegacyMonitoring TestMemoryMXBeansAndPoolsPresence G1 NoLegacy 38 * @run main/othervm -XX:+UseG1GC -XX:+G1UseLegacyMonitoring TestMemoryMXBeansAndPoolsPresence G1 Legacy 39 * @run main/othervm -XX:+UseParallelGC TestMemoryMXBeansAndPoolsPresence Parallel 40 * @run main/othervm -XX:+UseSerialGC TestMemoryMXBeansAndPoolsPresence Serial 41 */ 42 43 /* @test TestMemoryMXBeansAndPoolsPresenceCMS 44 * @bug 8191564 45 * @library /test/lib 46 * @modules java.base/jdk.internal.misc 47 * java.management 48 * @comment Graal does not support CMS 49 * @requires vm.gc == null & !vm.graal.enabled 50 * @run main/othervm -XX:+UseConcMarkSweepGC TestMemoryMXBeansAndPoolsPresence CMS 51 */ 52 53 class GCBeanDescription { 54 public String name; 55 public String[] poolNames; 56 57 public GCBeanDescription(String name, String[] poolNames) { 58 this.name = name; 59 this.poolNames = poolNames; 60 } 61 } 62 63 public class TestMemoryMXBeansAndPoolsPresence { 64 public static void test(GCBeanDescription... expectedBeans) { 65 List<MemoryPoolMXBean> memoryPools = ManagementFactory.getMemoryPoolMXBeans(); 66 67 List<GarbageCollectorMXBean> gcBeans = ManagementFactory.getGarbageCollectorMXBeans(); 68 assertEQ(expectedBeans.length, gcBeans.size()); 69 70 for (GCBeanDescription desc : expectedBeans) { 71 List<GarbageCollectorMXBean> beans = gcBeans.stream() 72 .filter(b -> b.getName().equals(desc.name)) 73 .collect(Collectors.toList()); 74 assertEQ(beans.size(), 1); 75 76 GarbageCollectorMXBean bean = beans.get(0); 77 assertEQ(desc.name, bean.getName()); 78 79 String[] pools = bean.getMemoryPoolNames(); 80 assertEQ(desc.poolNames.length, pools.length); 81 for (int i = 0; i < desc.poolNames.length; i++) { 82 assertEQ(desc.poolNames[i], pools[i]); 83 } 84 } 85 } 86 87 public static void main(String[] args) { 88 switch (args[0]) { 89 case "G1": 90 if (args[1].equals("Legacy")) { 91 test(new GCBeanDescription("G1 Young Generation", new String[] {"G1 Eden Space", "G1 Survivor Space", "G1 Old Gen"}), 92 new GCBeanDescription("G1 Old Generation", new String[] {"G1 Eden Space", "G1 Survivor Space", "G1 Old Gen"})); 93 } else { 94 test(new GCBeanDescription("G1 Young", 95 new String[] {"G1 Eden Space", "G1 Survivor Space", "G1 Humongous Space"}), 96 new GCBeanDescription("G1 Mixed", 97 new String[] {"G1 Eden Space", "G1 Survivor Space", "G1 Humongous Space", 98 "G1 Old Space"}), 99 new GCBeanDescription("G1 Full", 100 new String[] {"G1 Eden Space", "G1 Survivor Space", "G1 Humongous Space", 101 "G1 Archive Space", "G1 Old Space"}), 102 new GCBeanDescription("G1 Concurrent Cycle", 103 new String[] {"G1 Humongous Space", "G1 Old Space"})); 104 } 105 break; 106 case "CMS": 107 test(new GCBeanDescription("ParNew", new String[] {"Par Eden Space", "Par Survivor Space"}), 108 new GCBeanDescription("ConcurrentMarkSweep", new String[] {"Par Eden Space", "Par Survivor Space", "CMS Old Gen"})); 109 break; 110 case "Parallel": 111 test(new GCBeanDescription("PS Scavenge", new String[] {"PS Eden Space", "PS Survivor Space"}), 112 new GCBeanDescription("PS MarkSweep", new String[] {"PS Eden Space", "PS Survivor Space", "PS Old Gen"})); 113 break; 114 case "Serial": 115 test(new GCBeanDescription("Copy", new String[] {"Eden Space", "Survivor Space"}), 116 new GCBeanDescription("MarkSweepCompact", new String[] {"Eden Space", "Survivor Space", "Tenured Gen"})); 117 break; 118 default: 119 assertTrue(false); 120 break; 121 122 } 123 } 124 }