--- a/nashorn/src/jdk/nashorn/internal/codegen/TypeEvaluator.java	Thu Jun 26 13:12:32 2014 +0200
+++ b/nashorn/src/jdk/nashorn/internal/codegen/TypeEvaluator.java	Thu Jun 26 15:36:15 2014 +0200
@@ -25,6 +25,10 @@
 
 package jdk.nashorn.internal.codegen;
 
+import static jdk.nashorn.internal.runtime.Property.NOT_CONFIGURABLE;
+import static jdk.nashorn.internal.runtime.Property.NOT_ENUMERABLE;
+import static jdk.nashorn.internal.runtime.Property.NOT_WRITABLE;
+
 import jdk.nashorn.internal.codegen.types.Type;
 import jdk.nashorn.internal.ir.AccessNode;
 import jdk.nashorn.internal.ir.Expression;
@@ -43,8 +47,8 @@
  * Used during recompilation.
  */
 final class TypeEvaluator {
-    final Compiler compiler;
-    final ScriptObject runtimeScope;
+    private final Compiler compiler;
+    private final ScriptObject runtimeScope;
 
     TypeEvaluator(final Compiler compiler, final ScriptObject runtimeScope) {
         this.compiler = compiler;
@@ -123,7 +127,7 @@
                     " scope="+runtimeScope;
 
         if (runtimeScope.findProperty(symbolName, false) == null) {
-            runtimeScope.set(symbolName, ScriptRuntime.UNDEFINED, true);
+            runtimeScope.addOwnProperty(symbolName, NOT_WRITABLE | NOT_ENUMERABLE | NOT_CONFIGURABLE, ScriptRuntime.UNDEFINED);
         }
     }
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8047371.js	Thu Jun 26 15:36:15 2014 +0200
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2010, 2014, 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-8047371: local variable declaration in TypeEvaluator should use ScriptObject.addOwnProperty instead of .set
+ *
+ * @test
+ * @run
+ */
+
+print((function(){ var a=1; with({ get a() { return false } }) return a })());
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8047371.js.EXPECTED	Thu Jun 26 15:36:15 2014 +0200
@@ -0,0 +1,1 @@
+false