| /* |
| * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved. |
| * |
| * 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. |
| * |
| */ |
| |
| /** |
| * @test TestMemoryPools |
| * @summary Test JMX memory pools |
| * @key gc |
| * @requires vm.gc.Shenandoah & !vm.graal.enabled |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xmx1g -Xms1g 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"); |
| } |
| } |
| } |
| } |
| } |