--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/nashorn/script/basic/NASHORN-427.js	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,75 @@
+/*
+ * 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.
+ */
+
+/**
+ * NASHORN-427 : Object.seal and Object.freeze do not work for array objects as expected
+ *
+ * @test
+ * @run
+ */
+
+function checkSeal(arr) {
+    'use strict';
+
+    try {
+        delete arr[0];
+        fail("#1 can delete sealed array element");
+    } catch (e) {
+        if (! (e instanceof TypeError)) {
+            fail("#2 TypeError expected, got " + e);
+        }
+    }
+
+    try {
+        arr[arr.length] = 334;
+        fail("#3 can extend sealed array");
+    } catch (e) {
+        if (! (e instanceof TypeError)) {
+            fail("#4 TypeError expected, got " + e);
+        }
+    }
+}
+
+function checkFreeze(arr) {
+    'use strict';
+    checkSeal(arr);
+
+    try {
+        arr[arr.length - 1] = 34;
+        fail("#5 can assign to frozen array element");
+    } catch (e) {
+        if (! (e instanceof TypeError)) {
+            fail("#6 TypeError expected, got " + e);
+        }
+    }
+}
+
+
+var arr = [ 24 ];
+Object.seal(arr);
+checkSeal(arr);
+
+var arr2 = [ 42 ];
+Object.freeze(arr2);
+checkFreeze(arr2);
+