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/*
* Copyright (c) 2014, 2016, Oracle and/or its affiliates. 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.
*/
/**
* @test MemoryPoolsPresenceTest
* @summary verify that MemoryManagerMXBean exists for every code cache segment
* @modules java.base/jdk.internal.misc
* java.management
* @library /test/lib
*
* @build sun.hotspot.WhiteBox
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI
* -XX:+SegmentedCodeCache
* compiler.codecache.jmx.MemoryPoolsPresenceTest
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI
* -XX:-SegmentedCodeCache
* compiler.codecache.jmx.MemoryPoolsPresenceTest
*/
package compiler.codecache.jmx;
import jdk.test.lib.Asserts;
import sun.hotspot.code.BlobType;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryManagerMXBean;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
public class MemoryPoolsPresenceTest {
private static final String CC_MANAGER = "CodeCacheManager";
private final Map<String, Integer> counters = new HashMap<>();
public static void main(String args[]) {
new MemoryPoolsPresenceTest().runTest();
}
protected void runTest() {
List<MemoryManagerMXBean> beans
= ManagementFactory.getMemoryManagerMXBeans();
Optional<MemoryManagerMXBean> any = beans
.stream()
.filter(bean -> CC_MANAGER.equals(bean.getName()))
.findAny();
Asserts.assertTrue(any.isPresent(), "Bean not found: " + CC_MANAGER);
MemoryManagerMXBean ccManager = any.get();
Asserts.assertNotNull(ccManager, "Found null for " + CC_MANAGER);
String names[] = ccManager.getMemoryPoolNames();
for (String name : names) {
counters.put(name, counters.containsKey(name)
? counters.get(name) + 1 : 1);
}
for (BlobType btype : BlobType.getAvailable()) {
Asserts.assertEQ(counters.get(btype.getMemoryPool().getName()), 1,
"Found unexpected amount of beans for pool "
+ btype.getMemoryPool().getName());
}
Asserts.assertEQ(BlobType.getAvailable().size(),
counters.keySet().size(), "Unexpected amount of bean names");
}
}
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