as already mentioned in JDK-8136404 bullet 6, the api is incomplete: it has

scrollToTop(int)
scrollToTop(T)

but only

scrollToBottom(T)

(not only * ) for symmetry reasons it needs a scrollToBottom(int)

* the semantic of the methods taking a cell is different: they require the cell to be already active, while the method taking an index will create/reconfigure/whatever cells as needed (if I read the api doc correctly)

all versions including fx10