1 /*
2 * Copyright (c) 2017, 2018, Red Hat, Inc. 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 TestMemoryMXBeans
27 * @summary Test JMX memory beans
28 * @requires vm.gc.Shenandoah & !vm.graal.enabled
29 * @modules java.base/jdk.internal.misc
30 * java.management
31 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g TestMemoryMXBeans -1 1024
32 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xms1g -Xmx1g TestMemoryMXBeans 1024 1024
33 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xms128m -Xmx1g TestMemoryMXBeans 128 1024
34 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xms1g -Xmx1g -XX:ShenandoahUncommitDelay=0 TestMemoryMXBeans 1024 1024
35 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xms128m -Xmx1g -XX:ShenandoahUncommitDelay=0 TestMemoryMXBeans 128 1024
36 */
37
38 import java.lang.management.*;
39 import java.util.*;
40
41 public class TestMemoryMXBeans {
42
43 public static void main(String[] args) throws Exception {
44 if (args.length < 2) {
45 throw new IllegalStateException("Should provide expected heap sizes");
46 }
47
48 long initSize = 1L * Integer.parseInt(args[0]) * 1024 * 1024;
49 long maxSize = 1L * Integer.parseInt(args[1]) * 1024 * 1024;
50
51 // wait for GC to uncommit
52 Thread.sleep(1000);
53
54 testMemoryBean(initSize, maxSize);
55 }
56
57 public static void testMemoryBean(long initSize, long maxSize) {
58 MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
59 long heapInit = memoryMXBean.getHeapMemoryUsage().getInit();
60 long heapCommitted = memoryMXBean.getHeapMemoryUsage().getCommitted();
61 long heapMax = memoryMXBean.getHeapMemoryUsage().getMax();
62 long nonHeapInit = memoryMXBean.getNonHeapMemoryUsage().getInit();
63 long nonHeapCommitted = memoryMXBean.getNonHeapMemoryUsage().getCommitted();
64 long nonHeapMax = memoryMXBean.getNonHeapMemoryUsage().getMax();
65
66 if (initSize > 0 && heapInit != initSize) {
67 throw new IllegalStateException("Init heap size is wrong: " + heapInit + " vs " + initSize);
68 }
69 if (maxSize > 0 && heapMax != maxSize) {
70 throw new IllegalStateException("Max heap size is wrong: " + heapMax + " vs " + maxSize);
71 }
72 if (initSize > 0 && maxSize > 0 && initSize != maxSize && heapCommitted == heapMax) {
73 throw new IllegalStateException("Committed heap size is max: " + heapCommitted +
74 " (init: " + initSize + ", max: " + maxSize + ")");
75 }
76 if (initSize > 0 && maxSize > 0 && initSize == maxSize && heapCommitted != heapMax) {
77 throw new IllegalStateException("Committed heap size is not max: " + heapCommitted +
78 " (init: " + initSize + ", max: " + maxSize + ")");
79 }
80 if (initSize > 0 && heapCommitted < initSize) {
81 throw new IllegalStateException("Committed heap size is below min: " + heapCommitted +
82 " (init: " + initSize + ", max: " + maxSize + ")");
83 }
84 }
85 }