/* setting up the model */
private Box theMainBox =
   new Box("MasterBox");

theMainBox = new Box("Main Box");
Box subBox = new Box("SubBox");
Item item1 = new Item("item1");
Item item2 = new Item("item2");
subBox.addItem(item1);
subBox.addItem(item2);
theMainBox.addItem(subBox);

/* ... and the viewer bindings */

private WritableValue currentSelectedBoxable =
   new WritableValue();

//The following works fine ...
ViewerSupport.bind(treeViewer,
   BeanProperties.value("items")
      .observe(theMainBox),
   BeanProperties.list("items"),
   BeanProperties.value("name")
);
treeViewer.setInput(theMainBox);

//This does not work at all.
IViewerObservableValue  widgetSelection = 
   ViewerProperties
      .singleSelection()
      .observe(treeViewer);
IObservableValue modelSelection  = 
   BeanProperties
      .value("value")
      .observeDetail(currentSelectedBoxable);
bindings.bindValue(widgetSelection,modelSelection);

IViewerObservableValue  widgetSelection =
   ViewerProperties
      .singleSelection()
      .observe(treeViewer);

IObservableValue modelSelection  = 
   PojoProperties.value("value")
      .observe(currentSelectedBoxable);

bindings.bindValue(widgetSelection,modelSelection);

Properties.observableValue(Boxable.class).observe(currentSelectedBoxable);