Package development: Why does 'R-CMD-Check' via GH Actions fail on building rJava for MacOS

[Gewerd-Strauss]

Hello,

I am currently writing a package which suggests the RBioFormats-package; which in turn relies on rJava.

Jobs succeed on Windows and Ubuntu, but fail on macOS when attempting to build rJava 1.0-11 from source during step r-lib/actions/setup-r-dependencies@v2.
All GH-actions are default as suggested in the 2nd edition R Packages book.

I am not experienced in debugging GHA, but while I was tracking down the issue it seems that the R CMD check-action of this package seems to run successfully on macOS. So I am wondering if this is just an issue in how the default actions were set-up; but I don't feel too comfortable just copying the workflow on blind trust.
I have attached a failing, redacted log below.

Am I correct with my assumption that this is an issue with GHA?
What steps are required to rectify this and have the macOS-builds succeed?

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Thank you.
Sincerely,
~Gw

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redacted_duflor_logs.zip