In b08 docs there is description for properties of javafx.scene.control.SingleSelectionModel<T>(or javafx.scene.control.MultipleSelectionModel<T> ):

"Properties inherited from class javafx.scene.control.SelectionModel
selectedIndexProperty, selectedItemProperty"

But in javafx.scene.control.SelectionModel there is no such properties, only " selectedIndex" and "selectedItem".
I think that really problem not in javafx.scene.control.SelectionModel, because of property names shouldn't contain "Property" word.