--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/eclipse/jetty/util/ajax/JSONEnumConvertor.java	Wed Sep 07 21:15:48 2016 -0600
@@ -0,0 +1,93 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.util.ajax;
+
+import java.lang.reflect.Method;
+import java.util.Map;
+
+import org.eclipse.jetty.util.Loader;
+import org.eclipse.jetty.util.ajax.JSON.Output;
+import org.eclipse.jetty.util.log.Log;
+import org.eclipse.jetty.util.log.Logger;
+
+/* ------------------------------------------------------------ */
+/**
+ * Convert an {@link Enum} to JSON.
+ * If fromJSON is true in the constructor, the JSON generated will
+ * be of the form {class="com.acme.TrafficLight",value="Green"}
+ * If fromJSON is false, then only the string value of the enum is generated.
+ *
+ *
+ */
+public class JSONEnumConvertor implements JSON.Convertor
+{
+    private static final Logger LOG = Log.getLogger(JSONEnumConvertor.class);
+    private boolean _fromJSON;
+    private Method _valueOf;
+    {
+        try
+        {
+            Class<?> e = Loader.loadClass(getClass(),"java.lang.Enum");
+            _valueOf=e.getMethod("valueOf",Class.class,String.class);
+        }
+        catch(Exception e)
+        {
+            throw new RuntimeException("!Enums",e);
+        }
+    }
+
+    public JSONEnumConvertor()
+    {
+        this(false);
+    }
+
+    public JSONEnumConvertor(boolean fromJSON)
+    {
+        _fromJSON=fromJSON;
+    }
+
+    public Object fromJSON(Map map)
+    {
+        if (!_fromJSON)
+            throw new UnsupportedOperationException();
+        try
+        {
+            Class c=Loader.loadClass(getClass(),(String)map.get("class"));
+            return _valueOf.invoke(null,c,map.get("value"));
+        }
+        catch(Exception e)
+        {
+            LOG.warn(e);
+        }
+        return null;
+    }
+
+    public void toJSON(Object obj, Output out)
+    {
+        if (_fromJSON)
+        {
+            out.addClass(obj.getClass());
+            out.add("value",((Enum)obj).name());
+        }
+        else
+        {
+            out.add(((Enum)obj).name());
+        }
+    }
+}