OSGI - Update from 2.7.15 to 4.0.5 - Gemini JPA not usable

[col-panic]

We want to update our product from EclipseLink 2.7.15 to 4.0.5 in an Osgi Environment. Up to now we were implementing EntityManagerFactoryBuilder as shown in the following image to start our bundles, which is not available anymore.

The documentation still refers us to Gemini JPA https://eclipse.dev/eclipselink/documentation/4.0/solutions/solutions.html#INSTALL004 which seems not compatible to jakarta.persistence.

What is the recommended approache to migrate away from Gemini JPA? Could the documentation be updated for this?

This is the Gemini JPA 1.2.0 imports

[col-panic]

Question issued in Gemini JPA repository eclipse-gemini/gemini.jpa#1

[col-panic]

It seems like, that Gemini JPA may be simply removed. It is possible to run the code without it. We oriented our replacement solution on https://www.vogella.com/tutorials/EclipseLink/article.html