1 /* 2 * Copyright (c) 2014, 2016, 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 * @requires vm.flavor != "minimal" 28 * @modules java.base/jdk.internal.misc 29 * java.management 30 * @library /test/lib 31 * 32 * @build sun.hotspot.WhiteBox 33 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 34 * sun.hotspot.WhiteBox$WhiteBoxPermission 35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 36 * -XX:+WhiteBoxAPI 37 * -XX:+SegmentedCodeCache 38 * compiler.codecache.jmx.MemoryPoolsPresenceTest 39 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 40 * -XX:+WhiteBoxAPI 41 * -XX:-SegmentedCodeCache 42 * compiler.codecache.jmx.MemoryPoolsPresenceTest 43 */ 44 45 package compiler.codecache.jmx; 46 47 import jdk.test.lib.Asserts; 48 import sun.hotspot.code.BlobType; 49 50 import java.lang.management.ManagementFactory; 51 import java.lang.management.MemoryManagerMXBean; 52 import java.util.HashMap; 53 import java.util.List; 54 import java.util.Map; 55 import java.util.Optional; 56 57 public class MemoryPoolsPresenceTest { 58 59 private static final String CC_MANAGER = "CodeCacheManager"; 60 private final Map<String, Integer> counters = new HashMap<>(); 61 62 public static void main(String args[]) { 63 new MemoryPoolsPresenceTest().runTest(); 64 } 65 66 protected void runTest() { 67 List<MemoryManagerMXBean> beans 68 = ManagementFactory.getMemoryManagerMXBeans(); 69 Optional<MemoryManagerMXBean> any = beans 70 .stream() 71 .filter(bean -> CC_MANAGER.equals(bean.getName())) 72 .findAny(); 73 Asserts.assertTrue(any.isPresent(), "Bean not found: " + CC_MANAGER); 74 MemoryManagerMXBean ccManager = any.get(); 75 Asserts.assertNotNull(ccManager, "Found null for " + CC_MANAGER); 76 String names[] = ccManager.getMemoryPoolNames(); 77 for (String name : names) { 78 counters.put(name, counters.containsKey(name) 79 ? counters.get(name) + 1 : 1); 80 } 81 for (BlobType btype : BlobType.getAvailable()) { 82 Asserts.assertEQ(counters.get(btype.getMemoryPool().getName()), 1, 83 "Found unexpected amount of beans for pool " 84 + btype.getMemoryPool().getName()); 85 } 86 Asserts.assertEQ(BlobType.getAvailable().size(), 87 counters.keySet().size(), "Unexpected amount of bean names"); 88 } 89 }