RFR: 8279640: ListView with null SelectionModel/FocusModel throws NPE

[Jeanette Winzenburg]

On Mon, 22 Aug 2022 15:29:29 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

> There is also an unguarded access in CellBehaviorBase.selectRows(int,int) : 312 and CellBehaviorBase.sompleSelect(MouseButton,int,boolean) : 274, which are being fixed by #876
> 
> I'd suggest to integrate #876 first, followed by this PR, in order to avoid merge conflicts.

@andy-goryachev-oracle  hmm .. are those methods reached if selectionModel == null? On skimming across its code, it looks like all callers back out (that is not call it) without selectionModel. Might be wrong, though - hard to tell without documented preconditions, and without tests 😉

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PR: https://git.openjdk.org/jfx/pull/711