71 lines
2.5 KiB
Java
71 lines
2.5 KiB
Java
/*
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* Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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package gc.epsilon;
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/**
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* @test TestMemoryPools
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* @requires vm.gc.Epsilon
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* @summary Test JMX memory pools
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* @modules java.base/jdk.internal.misc
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* java.management
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*
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* @run main/othervm -Xms64m -Xmx64m
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* -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC
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* gc.epsilon.TestMemoryPools
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*/
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import java.lang.management.*;
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import java.util.*;
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public class TestMemoryPools {
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public static void main(String[] args) throws Exception {
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List<MemoryManagerMXBean> mms = ManagementFactory.getMemoryManagerMXBeans();
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if (mms == null) {
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throw new RuntimeException("getMemoryManagerMXBeans is null");
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}
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if (mms.isEmpty()) {
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throw new RuntimeException("getMemoryManagerMXBeans is empty");
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}
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for (MemoryManagerMXBean mmBean : mms) {
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String[] names = mmBean.getMemoryPoolNames();
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if (names == null) {
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throw new RuntimeException("getMemoryPoolNames() is null");
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}
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if (names.length == 0) {
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throw new RuntimeException("getMemoryPoolNames() is empty");
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}
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for (String name : names) {
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if (name == null) {
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throw new RuntimeException("pool name is null");
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}
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if (name.length() == 0) {
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throw new RuntimeException("pool name is empty");
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}
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}
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}
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}
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}
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