The following code was commented out in DragBoard:

// /**
// * Visual representation of data being transfered in a drag and drop gesture.
// * This will be shown to the side of the mouse cursor as it is moved around
// * the screen.
// */
// public Node dragView;
//
// /**
// * Specifies the opacity of the dragView node as the drag occurs. If this
// * is not specified, a default opacity of 0.65 will be applied.
// */
// public float dragViewOpacity = 0.65f;