it is currently used in the following code:

scalafx.scene.control.MenuItem 149: def buildEventDispatchChain(tail: jfxe.EventDispatchChain) = delegate.buildEventDispatchChain(tail)
scalafx.scene.control.TableColumn 405: def buildEventDispatchChain(tail: jfxe.EventDispatchChain) = delegate.buildEventDispatchChain(tail)
scalafx.scene.control.TreeItem 258: def buildEventDispatchChain(tail: jfxe.EventDispatchChain) =

Change from Defect to Enhancement, as all other missing wrappers.

It would make little sense to wrap these three interfaces, since they are implemented by some classes which are already wrapped.

These are interfaces mainly used internally by JavaFX.