iOS OpenJDK-11 Hotspot Arm64 & Intro

[Sven Gothel]

Dear mobile-dev mailinglist,
dear Steve, Johan et al.

first of all thank you very much for your work on
the OpenJDK mobile efforts.

My short introduction, I am the lead JogAmp <https://jogamp.org/>
developer and currently undertaking some efforts to add
Apple's iOS to our supported platforms,
see <https://jausoft.com/blog/2019/07/08/jogamp-ios-arm64-port-newt/>.

I followed your work here and we currently use OpenJDK 9 mobile
with Hotspot Zero, but naturally wanted to utilize Hotspot-Arm64.
Further we also like to use OpenJDK11+ to add the latest OpenJFX.

Regarding OpenJFX, we might even considering
to replace Glass with our NEWT windowing toolkit and use our JOGL
for the OpenGL binding directly - but first we like to use a
vanilla OpenJFX, of course.

Now the questions ..

+++

I have observed Johan's work over the last months, i.e. working
on the openjdk-9-mobile port to openjdk-11.
Johan, I would love to learn about the status/result of your work
here - i.e. is it now possible to produce an iOS Hotspot-Arm64 build?
What's left to do to produce a
   "iOS OpenJDK-11+ Hotspot Arm64 Build"?

A little rundown on this topic would be very appreciated Johan,
as I have read about your OpenJDK 9->11 patchset in 2018,
but could not produce a build yet.
Assuming there might be some work left(?),
I can offer to pick your work and continue there - best using git.

Of course, we have read Johan's latest work regarding AOT using GraalVM.
We have tested RoboVM earlier and are naturally intrigued using
the your GraalVM at a later point.
Big congratulations!

In a subsequent email, I will state my view on the current
iOS 'Apple App Store' Guidelines and Hotspot Arm64/Zero,
which IMHO does allow using Hotspot Arm64.

Best regards,

~Sven