generateSite not working on Mac M1

[cgoguyer]

Hello,
generateSite is not working on Mac M1 although generatePDF and generateHTML works fine.
I'm using native openJDK:

openjdk 17.0.9 2023-10-17
OpenJDK Runtime Environment Homebrew (build 17.0.9+0)
OpenJDK 64-Bit Server VM Homebrew (build 17.0.9+0, mixed mode, sharing)

> Task :generateSite
> Task :bake FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':bake'.
> A failure occurred while executing org.jbake.gradle.impl.JBakeWorkAction
   > /private/var/folders/nd/y6kkpjl13_gdb60t_mh24v600000gn/T/jna-1941716187/jna16761405974260304138.tmp: dlopen(/private/var/folders/nd/y6kkpjl13_gdb60t_mh24v600000gn/T/jna-1941716187/jna16761405974260304138.tmp, 0x0001): tried: '/private/var/folders/nd/y6kkpjl13_gdb60t_mh24v600000gn/T/jna-1941716187/jna16761405974260304138.tmp' (fat file, but missing compatible architecture (have 'i386,x86_64', need 'arm64')), '/System/Volumes/Preboot/Cryptexes/OS/private/var/folders/nd/y6kkpjl13_gdb60t_mh24v600000gn/T/jna-1941716187/jna16761405974260304138.tmp' (no such file), '/private/var/folders/nd/y6kkpjl13_gdb60t_mh24v600000gn/T/jna-1941716187/jna16761405974260304138.tmp' (fat file, but missing compatible architecture (have 'i386,x86_64', need 'arm64'))

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* Get more help at https://help.gradle.org

BUILD FAILED in 21s
5 actionable tasks: 3 executed, 2 up-to-date

[PacoVK]

Thanks for reporting! This is a known issue (see) I think we should try out either upgrade to latest release candidate of jbake or downgrade (see)

[PacoVK]

While revising the issue i came across #1082 (comment) which is a bummer, because that literally means no fix as of now, because we would loose JDK11 support

[rdmueller]

So, the fix is to start the rosetta emulator via arch -x86_64 /bin/bash and install the doctoolchain jdk within the emulator ./dtcw local getJava or with the new version of dtcw ./dtcw local install java. After this you can exit the emulator bash and use docToolchain as usual.

docToolchain will detect and use the local JDK (installed to $USER/.doctoolchain). Since it is not the native apple silicon one, it will start rosetta in the background and run dtc with the x86 JDK. Within this JDK, jBake runs without flaw.

Hope this helps

[PacoVK]

thanks, i can confirm on my M1 it works with the steps outlined by @rdmueller

Edit: I also verified that the latest Jbake-rc does not work. Hence, upgrade is currently no option and we need to use the aforementioned workaround

[cgoguyer]

Thx, it works with this tip.