OpenJDK Proposes Project Galahad to Merge GraalVM Native Compilation

Re:OpenJDK Proposes Project Galahad to Merge GraalVM Native ... by thangalin on Wednesday December 21, 2022 @05:07PM (#34087012)

It'll help build cross-platform desktop applications. In theory, it'll streamline using GitHub Actions to produce platform-specific binaries, such as my FOSS Markdown editor KeenWrite[0], without having to have a copy of every target operating system.

To my knowledge, cross-compiling "native" Linux and Windows binaries using Java requires duct tape, chewing gum, and warp-packer.[1][2] If there's another way to cross-compile a Java application into a standalone binary for multiple target platforms, do tell!

GraalVM isn't a panacea. For example, GraalVM cannot compile Renjin[3], a pure Java R interpreter, which means switching from Renjin to FastR. Not trivial. Other sinkholes likely lurk that'll only reveal themselves when walking through the weeds.

[0]: https://github.com/DaveJarvis/keenwrite

[1]: https://dave.autonoma.ca/blog/2020/06/29/write-once-build-an...

[2]: https://github.com/dgiagio/warp

[3]: https://github.com/bedatadriven/renjin/issues/564

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Re:OpenJDK Proposes Project Galahad to Merge GraalVM Native ... by anentropic on Wednesday December 21, 2022 @10:53PM (#34089580)

I'm actually wanting to do this with Graal at the moment ("using GitHub Actions to produce platform-specific binaries")

As far as I can tell Graal does not have cross-compilation ability currently (there is an open issue here: https://github.com/oracle/graal/issues/407)

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