MacOS Big Sur and OpenJFX on Arm Macs

[Kevin Rushforth]

At WWDC, Apple indicated that they have run the JDK on prototype Arm HW 
using Rosetta2. Once we get our hands on some HW we'll test JavaFX as 
well. I expect that it will run reasonably well.

I think that an ARM port for JavaFX won't be too difficult, although I 
doubt the existence of Linux ARM for embedded platforms will help much 
with the Mac. Most of the work will be upgrading to Xcode 12 and 
producing universal (fat) binaries again, which we did back in the very 
early days for ppc and intel.

As for a Metal port, we do plan to get started on that soon (we've done 
some very preliminary looking).

-- Kevin


On 7/1/2020 5:46 PM, Scott Palmer wrote:
> JavaFX already runs on some Arm-based devices like the Raspberry Pi, so I expect an Arm-based port for new Macs won’t be that big of a job (relatively speaking)
>
> Hopefully by that time there will be a Metal-base rendering pipeline as well. The Metal-based pipeline for Swing seems to be coming along nicely.
>
> I don’t know if Oracle has access to one of the early developer boxes that runs macOS on arm or not. If they don’t, then a Java/Java FX port may not be available on day 1. That being said,  perhaps Rosetta 2 will run the JDK/JRE until a proper port is available. I don’t know if the JIT compiler will work with Rosetta though. If it doesn’t then that certainly makes a proper port more urgent.
>
>
> Scott
>
>> On Jul 1, 2020, at 2:13 PM, Danny Gonzalez <danny.gonzalez at screamingfrog.co.uk> wrote:
>>
>> Hi All,
>>
>> Not sure if this is the correct place to direct this conversation but here goes.
>>
>> With the imminent arrival of Arm Macs in late 2020 running MacOS Big Sur, what are the plans to ensure that OpenJFX and Java will run on this platform?
>>
>> Are there plans to get the Developer Transition Kit to test on real hardware prior to the release of consumer hardware?
>> Are there testers testing on MacOs beta?
>>
>> Will OpenJFX and Java be able to run natively in this new Arm Mac environment?
>> Will OpenJFX and Java be able to run in the Rosetta emulator?
>>
>> We have many MacOS customers, many of whom will be early adopters and upgrade to the new Arm Macs so this could be a big issue for us.
>>
>> Thanks
>>
>> Danny
>>
>>