JVM hang with Swing and macOS

[Michael Hall]

> On May 23, 2023, at 5:54 AM, Martin Pernollet <martin.pernollet at protonmail.com> wrote:
> 
> Hi Philip,
> 
> Thank you a lot for these helpful clarifications.
> 
> You are right, I definitely need to jump on a dedicated OS thread. It is a pity the -XstartOnFirstThread does not do it.
> 
> We may probably use JOGL's OSXUtil class that does a good job at handling this already. The only limitation is that getting OSXUtil requires depending on all JOGL which additionally requires tweaks to avoid hangs and the like.
> 
> Regards,
> 
> Martin
> 
> 
> ------- Original Message -------
> Le mardi 18 avril 2023 à 19:52, Philip Race <philip.race at oracle.com> a écrit :
> 

Martin, 

A little strange you are replying to this one from April but not mine from 2 days ago? 

As I remember there were two show stopper issues. First OS/X OpenGL required -XstartOnFirstThread which didn’t work for Swing applications, and, Apple was discontinuing OpenGL support in favor of their own Metal API’s? 

In my post I mentioned that using a Mesa offscreen build I was able to run the demo creating an offscreen image and saving it to disk. 

As I remember your goal was to create an offscreen image and then copy it over to Swing. So, that’s done?

I changed the Panama API’s you used from 19 to 20. Which you will have to do sometime? 

Other than that for OS/X supporting OpenGL api’s going forward for Swing, or probably JavaFX, what is wrong with what I have? Maybe I can fix it.

Mike

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