diff -r 6031a0bc0ae2 -r da1e581c933b test/script/basic/NASHORN-397.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/NASHORN-397.js	Fri Dec 21 16:36:24 2012 -0400
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2010, 2012, 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.
+ */
+
+/**
+ * NASHORN-397 : typeof on certain member access expressions computes to undefined wrongly
+ *
+ * @test
+ * @run
+ */
+
+Object.defineProperty(Number.prototype, 'x',
+    { get : function() { return 42; } });
+
+if (typeof (5).x !== 'number') {
+    fail("typeof(5).x is not 'number'");
+}
+
+if (typeof (java.lang.System.out) != 'object') {
+    fail("typeof java.lang.System.out is not 'object'");
+}
+
+if (typeof (java.lang.Math.PI) != 'number') {
+    fail("typeof java.lang.Math.PI is not 'number'");
+}
+
+if (typeof (java.io.File.separator) != 'string') {
+    fail("typeof java.io.File.separator is not 'string'");
+}