Using Java on macOS ARM64

[Stephan Bergmann]

On 18/12/2020 11:59, Stephan Bergmann wrote:
> * A macOS ARM64 JDK is work in progress 
> (<https://openjdk.java.net/jeps/391> "JEP 391: macOS/AArch64 Port"), and 
> e.g. a MacPorts build of openjdk15 would still only cross-build an 
> x86-64 one.  But Azul appears to be progressing that JEP 
> (<https://adtmag.com/articles/2020/11/12/azul-supports-apple-silicon.aspx>), 
> and already offers e.g. JDK13 
> (<https://cdn.azul.com/zulu/bin/zulu13.35.1017-ca-jdk13.0.5.1-macos_aarch64.tar.gz>) 
> and a JDK16EA 
> (<https://cdn.azul.com/zulu/bin/zulu16.0.73-ea-jdk16.0.0-ea.28-macos_aarch64.zip>; 
> curiously, there's no JDK15, though):

For the record:  <https://openjdk.java.net/jeps/391> "JEP 391: 
macOS/AArch64 Port" has meanwhile been implemented in OpenJDK 17, which 
lead to our 
<https://git.libreoffice.org/core/+/e529461bcb126e0975ffa3f86e1fd5a630551de2%5E!/> 
"Enable JVM also on macOS ARM64" and follow-up 
<https://git.libreoffice.org/core/+/81debfba86b1d67d1c2e0ecd9c10ca35c3e7de5e%5E!/> 
"Restrict macOS ARM64 to Java >= 17".  (Though our cofigure.ac would 
still accept any JDK >= 9 for the build as on other platforms, even if 
that could cause failures later.  That check could be adapted if anybody 
sees a need.)