67 lines
2.5 KiB
Java
67 lines
2.5 KiB
Java
/*
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* Copyright (c) 2013, 2024, Oracle and/or its affiliates. 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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package gc.gctests.LoadUnloadGC;
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import java.lang.management.*;
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enum MemoryPoolFinder {
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CODE_CACHE,
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EDEN_SPACE,
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SURVIVOR_SPACE,
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OLD_GEN,
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PERM_GEN,
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METASPACE,
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CLASS_METASPACE;
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public static MemoryPoolMXBean findPool(MemoryPoolFinder pool) {
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for(MemoryPoolMXBean candidate : ManagementFactory.getMemoryPoolMXBeans()) {
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boolean found = false;
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switch(pool) {
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case CODE_CACHE:
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found = candidate.getName().contains("Code Cache");
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break;
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case EDEN_SPACE:
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found = candidate.getName().contains("Eden");
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break;
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case SURVIVOR_SPACE:
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found = candidate.getName().contains("Survivor");
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break;
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case OLD_GEN:
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found = candidate.getName().contains("Old") || candidate.getName().contains("Tenured");
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break;
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case PERM_GEN:
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found = candidate.getName().contains("Perm");
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break;
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case METASPACE:
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found = candidate.getName().contains("Metaspace") && !candidate.getName().contains("Class Metaspace");
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break;
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case CLASS_METASPACE:
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found = candidate.getName().contains("Class Metaspace");
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break;
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}
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if (found) return candidate;
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}
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return null;
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}
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}
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