src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/objects/NativeRegExpExecResult.java

@@ -86,9 +86,9 @@
      * @param length property value
      */
     @Setter(attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_CONFIGURABLE)
     public static void length(final Object self, final Object length) {
         if (self instanceof ScriptObject) {
-            ((ScriptObject)self).setLength(NativeArray.validLength(length, true));
+            ((ScriptObject)self).setLength(NativeArray.validLength(length));
         }
     }
 }