--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8024120.js	Wed Sep 04 14:29:07 2013 +0530
@@ -0,0 +1,42 @@
+/*
+ * 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-8024120: Setting __proto__ to null removes the __proto__ property
+ *
+ * @test
+ * @run
+ */
+
+var obj = {};
+
+obj.__proto__ = null;
+
+if (obj.__proto__ !== null || typeof(obj.__proto__) != 'object') {
+    fail("obj.__proto__ is expected to be null");
+}
+
+var p = Object.getPrototypeOf(obj);
+if (p !== null || typeof(p) != 'object') {
+    fail("Object.getPrototypeOf(obj) is expected to be null");
+}