--- a/nashorn/src/jdk/nashorn/internal/objects/NativeArray.java	Thu Apr 04 10:24:46 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeArray.java	Thu Apr 04 13:54:51 2013 +0530
@@ -160,7 +160,7 @@
         if ("length".equals(key)) {
             // Step 3a
             if (!desc.has(VALUE)) {
-                return super.defineOwnProperty("length", propertyDesc, reject);
+                return super.defineOwnProperty("length", desc, reject);
             }
 
             // Step 3b
@@ -242,7 +242,7 @@
 
             // Step 4c
             // set the new array element
-            final boolean succeeded = super.defineOwnProperty(key, propertyDesc, false);
+            final boolean succeeded = super.defineOwnProperty(key, desc, false);
 
             // Step 4d
             if (!succeeded) {
@@ -263,7 +263,7 @@
         }
 
         // not an index property
-        return super.defineOwnProperty(key, propertyDesc, reject);
+        return super.defineOwnProperty(key, desc, reject);
     }
 
     /**

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8011421.js	Thu Apr 04 13:54:51 2013 +0530
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2010, 2013, 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-8011421: When using Object.defineProperty on arrays, PropertyDescriptor's property accessors are invoked multiple times
+ *
+ * @test
+ * @run
+ */
+
+var configurableGetterCalled = 0;
+
+// create a property descriptor object with "configurable"
+// property with a user defined getter
+var propDesc = Object.defineProperty({},
+    "configurable",
+    {
+         get: function() {
+            configurableGetterCalled++;
+            return false
+         }
+    }
+);
+
+// make array length non-configurable
+Object.defineProperty([], "length", propDesc);
+
+// above should have called "configurable" getter only once
+if (configurableGetterCalled !== 1) {
+    fail("defineProperty on array should call propDesc getters only once");
+}