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
27 * @summary Test JMX memory pools
28 * @requires vm.gc.Shenandoah
29 * @modules java.base/jdk.internal.misc
30 * java.management
31 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g TestMemoryPools
32 */
33
34 import java.lang.management.*;
35 import java.util.*;
36
37 public class TestMemoryPools {
38
39 public static void main(String[] args) throws Exception {
40 List<MemoryManagerMXBean> mms = ManagementFactory.getMemoryManagerMXBeans();
41 if (mms == null) {
42 throw new RuntimeException("getMemoryManagerMXBeans is null");
43 }
44 if (mms.isEmpty()) {
45 throw new RuntimeException("getMemoryManagerMXBeans is empty");
46 }
47 for (MemoryManagerMXBean mmBean : mms) {
48 String[] names = mmBean.getMemoryPoolNames();
49 if (names == null) {
50 throw new RuntimeException("getMemoryPoolNames() is null");
51 }
52 if (names.length == 0) {
53 throw new RuntimeException("getMemoryPoolNames() is empty");
54 }
55 for (String name : names) {
56 if (name == null) {
57 throw new RuntimeException("pool name is null");
58 }
59 if (name.length() == 0) {
60 throw new RuntimeException("pool name is empty");
61 }
62 }
63 }
64 }
65 }
--- EOF ---