MacOS

[Michael Hall]

I noticed a pointer to jextract doc in the Java Newsletter that began with a typical way to run showing a normal command invocation.

jextract \
…

On MacOS

jextract --help
zsh: command not found: jextract
(base) mjh at MacBook-Pro-2 weka % /usr/libexec/java_home --exec jextract
WARNING: Using incubator modules: jdk.incubator.foreign, jdk.incubator.jextract
Expected a header file
(base) mjh at MacBook-Pro-2 weka % /usr/libexec/java_home --exec jextract --help
WARNING: Using incubator modules: jdk.incubator.jextract, jdk.incubator.foreign
Non-option arguments:  
[String] -- header file

Option                         Description                              
------                         -----------                              
-?, -h, --help                 print help                 
...

The command is default not there on MacOS (M3 Sonoma 14.5)

I think this has been discussed before and java has no way to provide these default invocations for new commands on MacOS? 
Is that still correct with no way planned to ever include new commands?

Also I might be mistaken but I thought FFM and related were out of incubator at 22? 

I thought possibly /usr/libexec/java_home was in this case for some reason not defaulting to the latest installed jdk (openjdk 22.0.1 2024-04-16)
But 
/usr/libexec/java_home --version 22 --exec jextract —help
Gets the same

It also seems jextract has no option to indicate the current installed version?



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