RFR: 7904004: Run jtreg GHA workflows for FreeBSD [v2]

[Christian Stein]

On Wed, 7 May 2025 11:39:28 GMT, snake66 <duke at openjdk.org> wrote:

>> .github/workflows/test.yml line 74:
>> 
>>> 72:             pw user add -n action -m
>>> 73:             su action -c 'git config --global --add safe.directory /home/runner/work/jtreg/jtreg'
>>> 74:             su action -c 'bash make/build.sh --jdk /usr/local/openjdk21'
>> 
>> I assume that the hard-coded `/usr/local/openjdk21` is well-defined and stable for `pkg ... openjdk21 ...` calls. Or is there an environment variable (`JAVA_HOME`?) being set that can be read out and used here?
>
> While it's technically possible to change the prefix from `/usr/local`, this is the default unless explicitly changed.
> 
> There are ways to get the path without hardcoding it, but I'm not sure it's worth the effort here:
> 
> 
> % JAVAVM_DRYRUN=1 javavm 2>/dev/null |grep JAVA_HOME|cut -d '=' -f 2
> /usr/local/openjdk21

The default is good-enough here, I guess. Otherwise, it would be more elegant to specify a custom location for the installation and then pass it later to subsequent processes.

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PR Review Comment: https://git.openjdk.org/jtreg/pull/262#discussion_r2077524883