diff -r bcc2354430ff -r ef01e0dccd63 jdk/test/java/lang/management/ManagementFactory/GetPlatformMXBeans.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/management/ManagementFactory/GetPlatformMXBeans.java	Thu Apr 10 10:47:13 2008 -0700
@@ -0,0 +1,180 @@
+/*
+ * Copyright 2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug     6610094
+ * @summary Basic unit test of ManagementFactory.getPlatformMXBeans()
+ *          and also PlatformManagedObject.getObjectName()
+ * @author  Mandy Chung
+ *
+ * @run main GetPlatformMXBeans
+ */
+
+import java.lang.management.*;
+import static java.lang.management.ManagementFactory.*;
+import java.util.*;
+import javax.management.*;
+
+public class GetPlatformMXBeans {
+    private static MBeanServer platformMBeanServer =
+            getPlatformMBeanServer();
+    public static void main(String[] argv) throws Exception {
+        checkPlatformMXBean(getClassLoadingMXBean(),
+                            ClassLoadingMXBean.class,
+                            CLASS_LOADING_MXBEAN_NAME);
+        checkPlatformMXBean(getCompilationMXBean(),
+                            CompilationMXBean.class,
+                            COMPILATION_MXBEAN_NAME);
+        checkPlatformMXBean(getMemoryMXBean(),
+                            MemoryMXBean.class,
+                            MEMORY_MXBEAN_NAME);
+        checkPlatformMXBean(getOperatingSystemMXBean(),
+                            OperatingSystemMXBean.class,
+                            OPERATING_SYSTEM_MXBEAN_NAME);
+        checkPlatformMXBean(getRuntimeMXBean(),
+                            RuntimeMXBean.class,
+                            RUNTIME_MXBEAN_NAME);
+        checkPlatformMXBean(getThreadMXBean(),
+                            ThreadMXBean.class,
+                            THREAD_MXBEAN_NAME);
+        checkGarbageCollectorMXBeans(getGarbageCollectorMXBeans());
+        checkMemoryManagerMXBeans(getMemoryManagerMXBeans());
+        checkMemoryPoolMXBeans(getMemoryPoolMXBeans());
+    }
+
+    private static <T extends PlatformManagedObject>
+        void checkPlatformMXBean(T obj, Class<T> mxbeanInterface,
+                                 String mxbeanName) throws Exception
+    {
+        int numElements = (obj != null ? 1 : 0);
+        // verify local list of platform MXBeans
+        List<? extends PlatformManagedObject> mxbeans =
+            getPlatformMXBeans(mxbeanInterface);
+        if (mxbeans.size() != numElements) {
+            throw new RuntimeException("Unmatched number of platform MXBeans "
+                + mxbeans.size() + ". Expected = " + numElements);
+        }
+
+        if (obj != null) {
+            PlatformManagedObject pmo = mxbeans.get(0);
+            if (obj != pmo) {
+                throw new RuntimeException("The list returned by getPlatformMXBeans"
+                    + " not matched");
+            }
+            ObjectName on = new ObjectName(mxbeanName);
+            if (!on.equals(pmo.getObjectName())) {
+                throw new RuntimeException("Unmatched ObjectName " +
+                    pmo.getObjectName() + " Expected = " + on);
+            }
+        }
+
+        // verify platform MXBeans in the platform MBeanServer
+        mxbeans = getPlatformMXBeans(platformMBeanServer, mxbeanInterface);
+        if (mxbeans.size() != numElements) {
+            throw new RuntimeException("Unmatched number of platform MXBeans "
+                + mxbeans.size() + ". Expected = " + numElements);
+        }
+    }
+
+    private static void checkMemoryManagerMXBeans(List<MemoryManagerMXBean> objs)
+        throws Exception
+    {
+        checkPlatformMXBeans(objs, MemoryManagerMXBean.class);
+        for (MemoryManagerMXBean mxbean : objs) {
+            String domainAndType;
+            if (mxbean instanceof GarbageCollectorMXBean) {
+                domainAndType = GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE;
+            } else {
+                domainAndType = MEMORY_MANAGER_MXBEAN_DOMAIN_TYPE;
+            }
+            ObjectName on = new ObjectName(domainAndType +
+                                           ",name=" + mxbean.getName());
+            if (!on.equals(mxbean.getObjectName())) {
+                throw new RuntimeException("Unmatched ObjectName " +
+                    mxbean.getObjectName() + " Expected = " + on);
+            }
+        }
+    }
+    private static void checkMemoryPoolMXBeans(List<MemoryPoolMXBean> objs)
+        throws Exception
+    {
+        checkPlatformMXBeans(objs, MemoryPoolMXBean.class);
+        for (MemoryPoolMXBean mxbean : objs) {
+            ObjectName on = new ObjectName(MEMORY_POOL_MXBEAN_DOMAIN_TYPE +
+                                           ",name=" + mxbean.getName());
+            if (!on.equals(mxbean.getObjectName())) {
+                throw new RuntimeException("Unmatched ObjectName " +
+                    mxbean.getObjectName() + " Expected = " + on);
+            }
+        }
+    }
+
+    private static void checkGarbageCollectorMXBeans(List<GarbageCollectorMXBean> objs)
+        throws Exception
+    {
+        checkPlatformMXBeans(objs, GarbageCollectorMXBean.class);
+        for (GarbageCollectorMXBean mxbean : objs) {
+            ObjectName on = new ObjectName(GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE +
+                                           ",name=" + mxbean.getName());
+            if (!on.equals(mxbean.getObjectName())) {
+                throw new RuntimeException("Unmatched ObjectName " +
+                    mxbean.getObjectName() + " Expected = " + on);
+            }
+        }
+    }
+
+    private static <T extends PlatformManagedObject>
+        void checkPlatformMXBeans(List<T> objs, Class<T> mxbeanInterface)
+            throws Exception
+    {
+        // verify local list of platform MXBeans
+        List<? extends PlatformManagedObject> mxbeans =
+            getPlatformMXBeans(mxbeanInterface);
+        if (objs.size() != mxbeans.size()) {
+            throw new RuntimeException("Unmatched number of platform MXBeans "
+                + mxbeans.size() + ". Expected = " + objs.size());
+        }
+        List<T> list = new ArrayList<T>(objs);
+        for (PlatformManagedObject pmo : mxbeans) {
+            if (list.contains(pmo)) {
+                list.remove(pmo);
+            } else {
+                throw new RuntimeException(pmo +
+                    " not in the platform MXBean list");
+            }
+        }
+
+        if (!list.isEmpty()) {
+            throw new RuntimeException("The list returned by getPlatformMXBeans"
+                + " not matched");
+        }
+
+        // verify platform MXBeans in the platform MBeanServer
+        mxbeans = getPlatformMXBeans(platformMBeanServer, mxbeanInterface);
+        if (objs.size() != mxbeans.size()) {
+            throw new RuntimeException("Unmatched number of platform MXBeans "
+                + mxbeans.size() + ". Expected = " + objs.size());
+        }
+    }
+}