How to build for win arm64?

[timoreichen]

Thought i just try:

"bundles": [ "mac-x64", "mac-arm64", "win", "win-arm64", "linux" ],

But no special download available. arm64, for windows 11 on parallels on a mac m1,2,3,4?

[shannah]

Right now I don't have arm builds of windows or linux. This is on my list but it requires me to either figure out how to cross-compile on an x64 github runner, or set up a self-hosted github runner on arm64.

What kinds of machines run windows on arm64 currently? Most/all of the consumer desktops and laptops I see are on x64.

[timoreichen]

Yes, you are totally right. I was not sure, if i missed that in the docs.. I use it myself mainly now (parallels on a m1 mac). While testing out my jdeploy'ed javafx app i see its a lot slower on virtualized Windows 11. Which gives me a bit of a bad feeling, as i cant really test it out in the same speed as on mac. Well, that would not be a reason to implement it as its "ok" to use it - although slower. But I want to deploy the app to a Microsofts Surface's (a maybe user..) - which is also is x86. Fine too. But i have a feeling that this company will have Surface Pro X, which is arm and i think the only one, very soon..

[timoreichen]

Found this: https://bugs.openjdk.org/browse/JDK-8314064. I dont now if that helps, but it should work at least without cross-compilation on javafx 22.

[timoreichen]

Depending on the fixed issue above it should be either possible. Building which i think is not what you are able to to now but crosscompiling should be possible already.

Taking that:
https://stackoverflow.com/questions/75006480/javafx-maven-platform-specific-build-mac-aarm64-qualifier

cross-compiling should be as easy as do:

mvn package -Djavafx.platform=windows-aarch64

I dont now if this helps for the githubrunner though.

[reportmill]

So it looks like this is supported now - my app runs on Surface Pro ARM and in Parallels on Mac M4. However, it looks like it downloads Java 11, even though I need Java 8. My SnapCode needs Java 8 for now (I'm limited in the browser by CheerpJ) and Java 11 is incompatible with my tools.jar, which is stuck on Java 8.

I'm guessing though that there might not be a Java 8 for Windows ARM, so there might not be a solution here (though I'm really hoping for CheerpJ to get me to Java 11 or above :-) )

[shannah]

Which app are you trying this on? I'd like to try and install to take a look.
I do recall some issues with windows on java 8, but I don't remember what it was, or how I solved it.

[reportmill]

This is ~snapcodejava, running on Windows ARM. The app runs fine, but if you click on one of the samples (like Tetris), it will try and fail to compile (because Java 11 doesn't like my tools.jar from Java 8).

[shannah]

Off to a dance recital. Will look later today.

One thing to note is that i have not compiled the launcher for arm yet so if it is running on arm, that is news to me. probably it's running on some sort of emulation.

[reportmill]

That's pretty amazing - because it seems to be running perfectly, even downloaded the jre-amd64.

[shannah]

Found the issue with java 8. I posted a ticket here #131

I'm close to finding a solution. Just need to bang my head against it for a while longer.