On Tue, 15 Sep 2026 20:04:17 GMT, Marius Hanl <[email protected]> wrote:
>> modules/javafx.controls/src/main/java/com/sun/javafx/scene/control/behavior/CellBehaviorBase.java
>> line 219:
>>
>>> 217: // If the mouse event is not contained within this TreeCell,
>>> then
>>> 218: // we don't want to react to it.
>>> 219: if (!cell.contains(x, y)) {
>>
>> we need to keep `cell.isEmpty()` check here because the model size can
>> change before an existing empty cell is updated (similarly to the cell
>> filter reproducer I've provided earlier)
>
> I'm confused. Clicking an empty cell is allowed, I can't see why it should
> not.
Instead, `getItemCount()` should not throw.
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PR Review Comment: https://git.openjdk.org/jfx/pull/2129#discussion_r4019725537
