--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/jdk.internal.jvmstat/share/classes/sun/jvmstat/monitor/Units.java	Sat Feb 04 03:29:39 2017 +0100
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2003, 2010, 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.jvmstat.monitor;
+
+/**
+ * Provides a typesafe enumeration for describing units of measurement
+ * attribute for instrumentation objects.
+ *
+ * @author   Brian Doherty
+ */
+public class Units implements java.io.Serializable {
+
+    /* The enumeration values for this typesafe enumeration must be
+     * kept in synchronization with the Units enum in the perfData.hpp file
+     * in the HotSpot source base.
+     */
+
+    private static final int NUNITS=8;
+
+    private static Units[] map = new Units[NUNITS];
+
+    private final String name;
+    private final int value;
+
+    /**
+     * An Invalid Units value.
+     */
+    public static final Units INVALID = new Units("Invalid", 0);
+
+    /**
+     * Units attribute representing unit-less quantities.
+     */
+    public static final Units NONE = new Units("None", 1);
+
+    /**
+     * Units attribute representing Bytes.
+     */
+    public static final Units BYTES = new Units("Bytes", 2);
+
+    /**
+     * Units attribute representing Ticks.
+     */
+    public static final Units TICKS = new Units("Ticks", 3);
+
+    /**
+     * Units attribute representing a count of events.
+     */
+    public static final Units EVENTS = new Units("Events", 4);
+
+    /**
+     * Units attribute representing String data. Although not really
+     * a unit of measure, this Units value serves to distinguish String
+     * instrumentation objects from instrumentation objects of other types.
+     */
+    public static final Units STRING = new Units("String", 5);
+
+    /**
+     * Units attribute representing Hertz (frequency).
+     */
+    public static final Units HERTZ = new Units("Hertz", 6);
+
+    /**
+     * Returns a string describing this Unit of measurement attribute
+     *
+     * @return String - a descriptive string for this enum.
+     */
+    public String toString() {
+        return name;
+    }
+
+    /**
+     * Returns the integer representation of this Units attribute
+     *
+     * @return int - an integer representation of this Units attribute.
+     */
+    public int intValue() {
+        return value;
+    }
+
+    /**
+     * Maps an integer value to its corresponding Units attribute.
+     * If the integer value does not have a corresponding Units enum
+     * value, then {@link Units#INVALID} is returned.
+     *
+     * @param value an integer representation of counter Units
+     * @return Units - the Units object for the given <code>value</code>
+     *                 or {@link Units#INVALID} if out of range.
+     */
+    public static Units toUnits(int value) {
+
+        if (value < 0 || value >= map.length || map[value] == null) {
+            return INVALID;
+        }
+
+        return map[value];
+    }
+
+    private Units(String name, int value) {
+        this.name = name;
+        this.value = value;
+        map[value] = this;
+    }
+
+    private static final long serialVersionUID = 6992337162326171013L;
+}