[backport] Docs: Fix build for java-api

[pgomulka]

The java-api docs had some broken references. Mostly because it is
difficult to build them so they are difficult to check.

Relates to #34528

• Have you signed the contributor license agreement?
• Have you followed the contributor guidelines?
• If submitting code, have you built your formula locally prior to submission with gradle check?
• If submitting code, is your pull request against master? Unless there is a good reason otherwise, we prefer pull requests against master and will backport as needed.
• If submitting code, have you checked that your submission is for an OS that we support?
• If you are submitting this code for a class then read our policy for that.