You may file a request for enhancement at bugzilla to find things not actually being there. Could be an interesting topic.
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Java on MacOS is a special case since several years. It was the only OS where you need to install a JDK, when all you need was JRE.
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Due to licences the question what to install is not so easy. “Original” by Oracle, or use OpenJDK/Adoptium … My company uses Coretto since Oracle changed licenses but the choice should be yours, not made by LibreOffice or Apple.
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Ask Apple as Finder is their playground.
Otherwise may I suggest to use more than one keyword in a typical search engine like “LibreOffice Base Java”. No island was in the top findings. In your case it may be wise to add also “MacOS” or a special release like “Monterey”…