1 /* 2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test MemoryPoolsPresenceTest 26 * @summary verify that MemoryManagerMXBean exists for every code cache segment 27 * @modules java.base/jdk.internal.misc 28 * java.management 29 * @library /testlibrary /test/lib 30 * 31 * @build compiler.codecache.jmx.MemoryPoolsPresenceTest 32 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 35 * -XX:+WhiteBoxAPI 36 * -XX:+SegmentedCodeCache 37 * compiler.codecache.jmx.MemoryPoolsPresenceTest 38 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 39 * -XX:+WhiteBoxAPI 40 * -XX:-SegmentedCodeCache 41 * compiler.codecache.jmx.MemoryPoolsPresenceTest 42 */ 43 44 package compiler.codecache.jmx; 45 46 import jdk.test.lib.Asserts; 47 import sun.hotspot.code.BlobType; 48 49 import java.lang.management.ManagementFactory; 50 import java.lang.management.MemoryManagerMXBean; 51 import java.util.HashMap; 52 import java.util.List; 53 import java.util.Map; 54 import java.util.Optional; 55 56 public class MemoryPoolsPresenceTest { 57 58 private static final String CC_MANAGER = "CodeCacheManager"; 59 private final Map<String, Integer> counters = new HashMap<>(); 60 61 public static void main(String args[]) { 62 new MemoryPoolsPresenceTest().runTest(); 63 } 64 65 protected void runTest() { 66 List<MemoryManagerMXBean> beans 67 = ManagementFactory.getMemoryManagerMXBeans(); 68 Optional<MemoryManagerMXBean> any = beans 69 .stream() 70 .filter(bean -> CC_MANAGER.equals(bean.getName())) 71 .findAny(); 72 Asserts.assertTrue(any.isPresent(), "Bean not found: " + CC_MANAGER); 73 MemoryManagerMXBean ccManager = any.get(); 74 Asserts.assertNotNull(ccManager, "Found null for " + CC_MANAGER); 75 String names[] = ccManager.getMemoryPoolNames(); 76 for (String name : names) { 77 counters.put(name, counters.containsKey(name) 78 ? counters.get(name) + 1 : 1); 79 } 80 for (BlobType btype : BlobType.getAvailable()) { 81 Asserts.assertEQ(counters.get(btype.getMemoryPool().getName()), 1, 82 "Found unexpected amount of beans for pool " 83 + btype.getMemoryPool().getName()); 84 } 85 Asserts.assertEQ(BlobType.getAvailable().size(), 86 counters.keySet().size(), "Unexpected amount of bean names"); 87 } 88 }