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diff --git a/js/src/tests/ecma_2/Exceptions/lexical-004.js b/js/src/tests/ecma_2/Exceptions/lexical-004.js
new file mode 100644
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+++ b/js/src/tests/ecma_2/Exceptions/lexical-004.js
@@ -0,0 +1,52 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/**
+   File Name:          lexical-004.js
+   Corresponds To:     ecma/LexicalExpressions/7.4.1-1-n.js
+   ECMA Section:       7.4.1
+
+   Description:
+
+   Reserved words cannot be used as identifiers.
+
+   ReservedWord ::
+   Keyword
+   FutureReservedWord
+   NullLiteral
+   BooleanLiteral
+
+   Author:             christine@netscape.com
+   Date:               12 november 1997
+
+*/
+var SECTION = "lexical-004";
+var VERSION = "JS1_4";
+var TITLE   = "Keywords";
+
+startTest();
+writeHeaderToLog( SECTION + " "+ TITLE);
+
+var result = "Failed";
+var exception = "No exception thrown";
+var expect = "Passed";
+
+try {
+  eval("var null = true;");
+} catch ( e ) {
+  result = expect;
+  exception = e.toString();
+}
+
+new TestCase(
+  SECTION,
+  "var null = true" +
+  " (threw " + exception +")",
+  expect,
+  result );
+
+test();
+