Product Version         = NetBeans IDE Dev (Build 201006180001) (#7c478dd3832c)
  Operating System        = Windows XP version 5.1 running on x86
  Java; VM; Vendor        = 1.6.0_20; Java HotSpot(TM) Client VM 16.3-b01; Sun Microsystems Inc.


Steps to reproduce:

- Create A JavaFX class:
-----------  A.fx ------------
package javafxapplication4;

public class A {
    public var a:String;
}
------------------------------

- Create Main JavaFX file:
-----------  Main.fx ---------
import javafx.stage.Stage;
import javafx.scene.Scene;


var v= A{
    a: ""   // <- Rename 'a' attribute
}


Stage {
    title: "Application title"
    scene: Scene {
    }
}
------------------------------

- Refactor->rename the 'a' attribute in the A{} object literal for 'v' variable

'Cannot refactor library class "javafx.stage.Stage".' message is shown