| /* |
| * Copyright (c) 2003, 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 |
| * @bug 4947536 |
| * @summary Basic unit test of ManagementFactory.getPlatformMBeanServer() |
| * @author Mandy Chung |
| * |
| * @modules java.logging |
| * jdk.management |
| */ |
| |
| import java.lang.management.*; |
| import static java.lang.management.ManagementFactory.*; |
| import java.util.*; |
| import java.util.logging.LogManager; |
| |
| import javax.management.MBeanServer; |
| import javax.management.ObjectName; |
| |
| public class PlatformMBeanServerTest { |
| public static void main(String[] argv) throws Exception { |
| MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); |
| printMBeans(mbs); |
| |
| // validate if all standard JVM MBeans are registered |
| checkStandardMBeans(mbs); |
| |
| // validate if all platform MBeans are registered |
| checkPlatformMBeans(mbs); |
| |
| MBeanServer mbs1 = ManagementFactory.getPlatformMBeanServer(); |
| if (mbs != mbs1) { |
| throw new RuntimeException("Second call to getPlatformMBeanServer()" |
| + " returns a different MBeanServer."); |
| } |
| |
| System.out.println("Test passed."); |
| } |
| |
| private static void checkMBean(MBeanServer mbs, String mbeanName) |
| throws Exception { |
| try { |
| ObjectName objName = new ObjectName(mbeanName); |
| // We could call mbs.isRegistered(objName) here. |
| // Calling getMBeanInfo will throw exception if not found. |
| mbs.getMBeanInfo(objName); |
| } catch (Exception e) { |
| throw e; |
| } |
| } |
| private static void checkStandardMBeans(MBeanServer mbs) throws Exception { |
| checkMBean(mbs, CLASS_LOADING_MXBEAN_NAME); |
| checkMBean(mbs, MEMORY_MXBEAN_NAME); |
| checkMBean(mbs, OPERATING_SYSTEM_MXBEAN_NAME); |
| checkMBean(mbs, RUNTIME_MXBEAN_NAME); |
| checkMBean(mbs, THREAD_MXBEAN_NAME); |
| if (ManagementFactory.getCompilationMXBean() != null) { |
| checkMBean(mbs, COMPILATION_MXBEAN_NAME); |
| } |
| |
| List pools = ManagementFactory.getMemoryPoolMXBeans(); |
| for (ListIterator iter = pools.listIterator(); iter.hasNext(); ) { |
| MemoryPoolMXBean p = (MemoryPoolMXBean) iter.next(); |
| checkMBean(mbs, MEMORY_POOL_MXBEAN_DOMAIN_TYPE + ",name=" + p.getName()); |
| } |
| |
| // Check the number of memory pools in the mbs |
| Set set = mbs.queryNames(new ObjectName(MEMORY_POOL_MXBEAN_DOMAIN_TYPE + ",*"), null); |
| if (set.size() != pools.size()) { |
| throw new RuntimeException("Unexpected number of memory pools:" + |
| "MBeanServer has " + set.size() + |
| ". Expected = " + pools.size()); |
| } |
| |
| List mgrs = ManagementFactory.getMemoryManagerMXBeans(); |
| int num_mgrs = 0; |
| for (ListIterator iter = mgrs.listIterator(); iter.hasNext(); ) { |
| MemoryManagerMXBean m = (MemoryManagerMXBean) iter.next(); |
| if (m instanceof GarbageCollectorMXBean) { |
| checkMBean(mbs, GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE |
| + ",name=" + m.getName()); |
| } else { |
| checkMBean(mbs, MEMORY_MANAGER_MXBEAN_DOMAIN_TYPE |
| + ",name=" + m.getName()); |
| num_mgrs++; |
| } |
| } |
| |
| List gcs = ManagementFactory.getGarbageCollectorMXBeans(); |
| for (ListIterator iter = gcs.listIterator(); iter.hasNext(); ) { |
| GarbageCollectorMXBean gc = (GarbageCollectorMXBean) iter.next(); |
| checkMBean(mbs, GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE |
| + ",name=" + gc.getName()); |
| } |
| |
| // Check the number of memory managers and garbage collectors in the mbs |
| set = mbs.queryNames(new ObjectName(MEMORY_MANAGER_MXBEAN_DOMAIN_TYPE + ",*"), null); |
| if (set.size() != num_mgrs) { |
| throw new RuntimeException("Unexpected number of memory managers:" + |
| "MBeanServer has " + set.size() + |
| ". Expected = " + num_mgrs); |
| } |
| |
| set = mbs.queryNames(new ObjectName(GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE + ",*"), null); |
| if (set.size() != gcs.size()) { |
| throw new RuntimeException("Unexpected number of garbage collectors:" + |
| "MBeanServer has " + set.size() + |
| ". Expected = " + gcs.size()); |
| } |
| } |
| private static void checkPlatformMBeans(MBeanServer mbs) throws Exception { |
| checkMBean(mbs, LogManager.LOGGING_MXBEAN_NAME); |
| } |
| |
| private static void printMBeans(MBeanServer mbs) throws Exception { |
| Set set = mbs.queryNames(null, null); |
| for (Iterator iter = set.iterator(); iter.hasNext(); ) { |
| System.out.println(iter.next()); |
| } |
| } |
| } |