--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/management/MemoryMXBean/MemoryUtil.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2004 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.
+ */
+
+/*
+ * @bug     4982289
+ * @summary Utility class.
+ * @author Mandy Chung
+ */
+
+import java.lang.management.*;
+import java.util.*;
+
+public class MemoryUtil {
+
+    private static String INDENT = "    ";
+    private static String formatSize(String name, long value) {
+        StringBuffer buf = new StringBuffer(name + " = " + value);
+        if (value > 0) {
+            buf.append(" (" + (value >> 10) + "K)");
+        }
+        return buf.toString();
+    }
+    public static void printMemoryUsage(MemoryUsage usage) {
+        System.out.println(INDENT + formatSize("Initial size  ", usage.getInit()));
+        System.out.println(INDENT + formatSize("Used size     ", usage.getUsed()));
+        System.out.println(INDENT + formatSize("Committd size ", usage.getCommitted()));
+        System.out.println(INDENT + formatSize("Max size      ", usage.getMax()));
+    }
+
+    public static void printMemoryPool(MemoryPoolMXBean pool) {
+        System.out.println(INDENT + "Memory Pool name: " + pool.getName());
+        System.out.println(INDENT + "Type: " + pool.getType());
+        System.out.println(INDENT + "Memory Usage: " +
+            pool.getUsage());
+        System.out.println(INDENT + "Threshold: " +
+            (pool.isUsageThresholdSupported() ? pool.getUsageThreshold() : -1));
+        System.out.print(INDENT + "Manager = [");
+        String[] mgrs = pool.getMemoryManagerNames();
+        for (int i = 0; i < mgrs.length; i++) {
+            System.out.print(mgrs[i]);
+            if (i < (mgrs.length - 1)) {
+                System.out.print(" | ");
+            }
+        }
+        System.out.println("]");
+    }
+
+    public static void printMemoryPools(List pools) {
+        ListIterator iter = pools.listIterator();
+        System.out.println(INDENT + "Number of memory pools = " + pools.size());
+        while (iter.hasNext()) {
+            MemoryPoolMXBean pool = (MemoryPoolMXBean) iter.next();
+            printMemoryPool(pool);
+        }
+    }
+
+    public static void printMemoryManager(MemoryManagerMXBean mgr) {
+        if (mgr instanceof GarbageCollectorMXBean) {
+            GarbageCollectorMXBean gc = (GarbageCollectorMXBean) mgr;
+            System.out.println(INDENT + "Garbage Collector name: " + gc.getName());
+            System.out.println(INDENT + "GC Count: " + gc.getCollectionCount());
+            System.out.println(INDENT + "GC Time : " + gc.getCollectionTime());
+        } else {
+            System.out.println(INDENT + "Memory Manager name: " + mgr.getName());
+        }
+
+        System.out.print("Pool = [");
+        String[] pools = mgr.getMemoryPoolNames();
+        for (int i = 0; i < pools.length; i++) {
+            System.out.print(INDENT + pools[i]);
+            if (i < (pools.length - 1)) {
+                System.out.print(" | ");
+            }
+        }
+        System.out.println("]");
+    }
+
+    public static void printMemoryManagers(List managers) {
+        ListIterator iter = managers.listIterator();
+        System.out.println(INDENT + "Number of memory managers = " +
+            managers.size());
+        while (iter.hasNext()) {
+            MemoryManagerMXBean mgr = (MemoryManagerMXBean) iter.next();
+            printMemoryManager(mgr);
+        }
+    }
+
+    public static void printMemoryNotificationInfo
+        (MemoryNotificationInfo minfo, String type) {
+        System.out.print("Notification for " + minfo.getPoolName());
+        System.out.print(" [type = " + type);
+        System.out.println(" count = " + minfo.getCount() + "]");
+        System.out.println(INDENT + "usage = " + minfo.getUsage());
+    }
+}