diff -r 6694369ed3f9 -r 079a87f87518 test/nashorn/script/basic/JDK-8027302.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/nashorn/script/basic/JDK-8027302.js	Fri Oct 13 17:25:12 2017 +0200
@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2017, 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-8027302: Identifiers containing unicode escapes are not recognized as reserved words
+ *
+ * @test
+ * @run
+ */
+
+// keywords containing escapes
+
+try {
+    eval("v\\u0061r i;");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+try {
+    eval("\\u0069f (true) ;");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof ReferenceError); // no SyntaxError in ES5
+}
+
+try {
+    eval("if (true) ; \\u0065lse ;");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof ReferenceError); // no SyntaxError in ES5
+}
+
+try {
+    eval("f\\u0075nction x() {}");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+try {
+    eval("var f = f\\u0075nction() {}");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+try {
+    eval("var o = { f: f\\u0075nction() {}}");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+try {
+    eval("var a = [f\\u0075nction() {}]");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+// keywords as identifiers, with and without escapes
+
+try {
+    eval("function break() {}");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+try {
+    eval("function bre\\u0061k() {}");
+} catch (e) {
+    fail("Unexpected error");
+}
+
+try {
+    eval("function f(break) {}");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+try {
+    eval("function f(bre\\u0061k) {}");
+} catch (e) {
+    fail("Unexpected error");
+}
+
+try {
+    eval("var break = 3");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+try {
+    eval("'use strict'; var break = 3");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+try {
+    eval("var bre\\u0061k = 3");
+} catch (e) {
+    fail("Unexpected error");
+}
+
+try {
+    eval("'use strict'; var bre\\u0061k = 3");
+} catch (e) {
+    fail("Unexpected error");
+}
+
+try {
+    eval("var package = 3");
+} catch (e) {
+    fail("Unexpected error");
+}
+
+try {
+    eval("'use strict'; var package = 3");
+    fail("Expected error");
+} catch (e) {
+    Assert.assertTrue(e instanceof SyntaxError);
+}
+
+try {
+    eval("var p\\u0061ckage = 3");
+} catch (e) {
+    fail("Unexpected error");
+}
+
+try {
+    eval("'use strict'; var p\\u0061ckage = 3");
+} catch (e) {
+    fail("Unexpected error");
+}
+