--- old/modules/controls/src/main/java/com/sun/javafx/scene/control/behavior/TwoLevelFocusComboBehavior.java	2016-06-03 11:04:01.285423619 -0700
+++ new/modules/controls/src/main/java/com/sun/javafx/scene/control/behavior/TwoLevelFocusComboBehavior.java	2016-06-03 11:04:00.897423623 -0700
@@ -25,6 +25,7 @@
 
 package com.sun.javafx.scene.control.behavior;
 
+import com.sun.javafx.scene.NodeHelper;
 import javafx.scene.Node;
 
 import javafx.scene.Scene;
@@ -83,27 +84,27 @@
                     switch (((KeyEvent)event).getCode()) {
                       case TAB :
                           if (((KeyEvent)event).isShiftDown()) {
-                              ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.PREVIOUS);
+                              NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.PREVIOUS);
                           }
                           else {
-                              ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.NEXT);
+                              NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.NEXT);
                           }
                           event.consume();
                           break;
                       case UP :
-                          ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.UP);
+                          NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.UP);
                           event.consume();
                           break;
                       case DOWN :
-                          ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.DOWN);
+                          NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.DOWN);
                           event.consume();
                           break;
                       case LEFT :
-                          ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.LEFT);
+                          NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.LEFT);
                           event.consume();
                           break;
                       case RIGHT :
-                          ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.RIGHT);
+                          NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.RIGHT);
                           event.consume();
                           break;
                       case ENTER :