--- old/src/jdk/nashorn/internal/objects/NativeError.java	2014-06-05 09:30:31.544011601 +0530
+++ new/src/jdk/nashorn/internal/objects/NativeError.java	2014-06-05 09:30:31.212009950 +0530
@@ -327,7 +327,12 @@
         final Object exception = ECMAException.getException(sobj);
         if (exception instanceof Throwable) {
             Object value = getScriptStackString(sobj, (Throwable)exception);
-            sobj.put(STACK, value, false);
+            if (sobj.hasOwnProperty(STACK)) {
+                sobj.put(STACK, value, false);
+            } else {
+                sobj.addOwnProperty(STACK, Attribute.NOT_ENUMERABLE, value);
+            }
+
             return value;
         }
 
@@ -346,7 +351,12 @@
     public static Object setStack(final Object self, final Object value) {
         Global.checkObject(self);
         final ScriptObject sobj = (ScriptObject)self;
-        sobj.set(STACK, value, false);
+        if (sobj.hasOwnProperty(STACK)) {
+            sobj.put(STACK, value, false);
+        } else {
+            sobj.addOwnProperty(STACK, Attribute.NOT_ENUMERABLE, value);
+        }
+
         return value;
     }