--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8073846.js	Mon Apr 20 10:39:55 2015 +0200
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2015, 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-8073846: Javascript for-in loop returned extra keys
+ *
+ * @test
+ * @run
+ */
+
+var obj = {};
+
+var list = [
+    '2100000',
+    '420000',
+    '430000'
+];
+
+for (var i = 0; i < list.length; i++) {
+    if (obj[list[i]]) print("duplicate: " + list[i]);
+    obj[list[i]] = 'obj' + list[i]
+}
+
+var count = 0;
+for (var a in obj) {
+    count++;
+    if ('obj' + a !== obj[a]) {
+        throw 'wrong key or value: ' + a + ', ' + obj[a];
+    }
+}
+
+if (count !== 3) {
+    throw 'wrong entry count: ' + count;
+}