--- /dev/null 2014-12-02 13:47:03.829845816 +0300 +++ new/test/compiler/codecache/jmx/MemoryPoolsPresenceTest.java 2014-12-04 21:15:00.808585421 +0300 @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2014, 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. + */ + +import com.oracle.java.testlibrary.Asserts; +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.NoSuchElementException; +import java.util.Optional; +import sun.hotspot.code.BlobType; + +/** + * @test MemoryPoolsPresenceTest + * @library /testlibrary /testlibrary/whitebox + * @build MemoryPoolsPresenceTest + * @run main ClassFileInstaller sun.hotspot.WhiteBox + * sun.hotspot.WhiteBox$WhiteBoxPermission + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions + * -XX:+WhiteBoxAPI -XX:+SegmentedCodeCache MemoryPoolsPresenceTest + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions + * -XX:+WhiteBoxAPI -XX:-SegmentedCodeCache MemoryPoolsPresenceTest + * @summary verify that MemoryManagerMXBean exists for every code cache segment + */ +public class MemoryPoolsPresenceTest { + + private static final String CC_MANAGER = "CodeCacheManager"; + private final Map counters = new HashMap<>(); + + public static void main(String args[]) { + new MemoryPoolsPresenceTest().runTest(); + } + + protected void runTest() { + List beans + = ManagementFactory.getMemoryManagerMXBeans(); + Optional 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"); + } +}