RFR: 8349004: DatePicker: NPE in show() when initialized in a background thread

[Kevin Rushforth]

On Wed, 12 Feb 2025 23:39:07 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

> > 1. Change the spec and implementation to throw an exception if `ComboBoxBaseSkin::show` is called on a thread other than the FX Application Thread
> 
> I like this option!
> 
> Does it mean ColorPicker.show() should also throw?

Yes. If we do this -- and I think we should strongly consider it -- all of the `show` methods in Control, PopupWindow, and Skin should throw on a background thread.

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PR Comment: https://git.openjdk.org/jfx/pull/1708#issuecomment-2655091487