modules/graphics/src/main/java/com/sun/javafx/scene/GroupHelper.java

*** 25,34 ****
--- 25,35 ----
  
  package com.sun.javafx.scene;
  
  import com.sun.javafx.sg.prism.NGNode;
  import com.sun.javafx.util.Utils;
+ import javafx.geometry.Bounds;
  import javafx.scene.Group;
  import javafx.scene.Node;
  
  /**
   * Used to access internal methods of Group.
*** 54,70 ****
--- 55,78 ----
      @Override
      protected NGNode createPeerImpl(Node node) {
          return super.createPeerImpl(node);
      }
  
+     @Override
+     protected Bounds computeLayoutBoundsImpl(Node node) {
+         groupAccessor.doComputeLayoutBounds(node);
+         return super.computeLayoutBoundsImpl(node);
+     }
+ 
      public static void setGroupAccessor(final GroupAccessor newAccessor) {
          if (groupAccessor != null) {
              throw new IllegalStateException();
          }
  
          groupAccessor = newAccessor;
      }
  
      public interface GroupAccessor {
+         Bounds doComputeLayoutBounds(Node node);
      }
  
  }