--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.management/share/classes/sun/management/MemoryNotifInfoCompositeData.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2004, 2008, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package sun.management;
+
+import java.lang.management.MemoryNotificationInfo;
+import java.lang.management.MemoryUsage;
+import javax.management.openmbean.CompositeData;
+import javax.management.openmbean.CompositeType;
+import javax.management.openmbean.CompositeDataSupport;
+import javax.management.openmbean.OpenDataException;
+
+/**
+ * A CompositeData for MemoryNotificationInfo for the local management support.
+ * This class avoids the performance penalty paid to the
+ * construction of a CompositeData use in the local case.
+ */
+public class MemoryNotifInfoCompositeData extends LazyCompositeData {
+    private final MemoryNotificationInfo memoryNotifInfo;
+
+    private MemoryNotifInfoCompositeData(MemoryNotificationInfo info) {
+        this.memoryNotifInfo = info;
+    }
+
+    public MemoryNotificationInfo getMemoryNotifInfo() {
+        return memoryNotifInfo;
+    }
+
+    public static CompositeData toCompositeData(MemoryNotificationInfo info) {
+        MemoryNotifInfoCompositeData mnicd =
+            new MemoryNotifInfoCompositeData(info);
+        return mnicd.getCompositeData();
+    }
+
+    protected CompositeData getCompositeData() {
+        // CONTENTS OF THIS ARRAY MUST BE SYNCHRONIZED WITH
+        // memoryNotifInfoItemNames!
+        final Object[] memoryNotifInfoItemValues = {
+            memoryNotifInfo.getPoolName(),
+            MemoryUsageCompositeData.toCompositeData(memoryNotifInfo.getUsage()),
+            memoryNotifInfo.getCount(),
+        };
+
+        try {
+            return new CompositeDataSupport(memoryNotifInfoCompositeType,
+                                            memoryNotifInfoItemNames,
+                                            memoryNotifInfoItemValues);
+        } catch (OpenDataException e) {
+            // Should never reach here
+            throw new AssertionError(e);
+        }
+    }
+
+    private static final CompositeType memoryNotifInfoCompositeType;
+    static {
+        try {
+            memoryNotifInfoCompositeType = (CompositeType)
+                MappedMXBeanType.toOpenType(MemoryNotificationInfo.class);
+        } catch (OpenDataException e) {
+            // Should never reach here
+            throw new AssertionError(e);
+        }
+    }
+
+    private static final String POOL_NAME = "poolName";
+    private static final String USAGE     = "usage";
+    private static final String COUNT     = "count";
+    private static final String[] memoryNotifInfoItemNames = {
+        POOL_NAME,
+        USAGE,
+        COUNT,
+    };
+
+
+    public static String getPoolName(CompositeData cd) {
+        String poolname = getString(cd, POOL_NAME);
+        if (poolname == null) {
+            throw new IllegalArgumentException("Invalid composite data: " +
+                "Attribute " + POOL_NAME + " has null value");
+        }
+        return poolname;
+    }
+
+    public static MemoryUsage getUsage(CompositeData cd) {
+        CompositeData usageData = (CompositeData) cd.get(USAGE);
+        return MemoryUsage.from(usageData);
+    }
+
+    public static long getCount(CompositeData cd) {
+        return getLong(cd, COUNT);
+    }
+
+    /** Validate if the input CompositeData has the expected
+     * CompositeType (i.e. contain all attributes with expected
+     * names and types).
+     */
+    public static void validateCompositeData(CompositeData cd) {
+        if (cd == null) {
+            throw new NullPointerException("Null CompositeData");
+        }
+
+        if (!isTypeMatched(memoryNotifInfoCompositeType, cd.getCompositeType())) {
+            throw new IllegalArgumentException(
+                "Unexpected composite type for MemoryNotificationInfo");
+        }
+    }
+
+    private static final long serialVersionUID = -1805123446483771291L;
+}