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