--- a/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/objects/NativeObject.java	Mon Dec 01 13:17:24 2014 +0100
+++ b/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/objects/NativeObject.java	Wed Dec 03 11:43:57 2014 +0100
@@ -499,7 +499,7 @@
         final Object obj = JSType.toScriptObject(self);
         if (obj instanceof ScriptObject) {
             final InvokeByName toStringInvoker = getTO_STRING();
-            final ScriptObject sobj = (ScriptObject)self;
+            final ScriptObject sobj = (ScriptObject)obj;
             try {
                 final Object toString = toStringInvoker.getGetter().invokeExact(sobj);
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8066214.js	Wed Dec 03 11:43:57 2014 +0100
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2014, 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.
+ * 
+ * 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.
+ */
+
+/**
+ * JDK-8066214: Fuzzing bug: Object.prototype.toLocaleString(0)
+ *
+ * @test
+ * @run
+ */
+
+function test(func) {
+    print(func.call(0));
+    print(func.call("abc"));
+    print(func.call(true));
+    try {
+        print(func.call(undefined));
+    } catch (e) {
+        print(e);
+    }
+    try {
+        print(func.call(null));
+    } catch (e) {
+        print(e);
+    }
+}
+
+test(Object.prototype.toLocaleString);
+test(Object.prototype.toString);
+test(Object.prototype.valueOf);

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8066214.js.EXPECTED	Wed Dec 03 11:43:57 2014 +0100
@@ -0,0 +1,15 @@
+0
+abc
+true
+TypeError: undefined is not an Object
+TypeError: null is not an Object
+[object Number]
+[object String]
+[object Boolean]
+[object Undefined]
+[object Null]
+0
+abc
+true
+TypeError: undefined is not an Object
+TypeError: null is not an Object