Public web application with PF4J and Spring(Boot)

[decebals]

Recently I started to work on a web application using PF4J and Spring Boot.
I use pf4j-spring library.
I encounter some problem in context of JPA (Hibernate). My issue is described in #65 (comment).
I tried to investigate a little bit the issue and I saw that it is not easy to find a solution (add JPA support in app + plugins).
@hank-cp did a good job in https://github.com/hank-cp/sbp. He summarizes the possible solutions in https://github.com/hank-cp/sbp/blob/master/docs/persistence.md but his conclusion on this subject is somehow clear:

I spent so many time trying to manage hibernate entity graph, and gave it up finally. HIbernate is totally deaign for monolithic architecture, and never consider any runtime/dynamic support, as well as in future I guess.

For more context see hank-cp/sbp#11 (comment).
After I spending a few hours investigated the issue, I'm inclined to agree with him.

It's for the first time when I try to use pf4j in a Spring Boot web application.
Until now I have used another stack but I said to convert the application that I am going to publish as open source into a Spring Boot application so that I can somehow be aligned with the main stream.

Now my question to the community is: has anyone managed to create a scalable application using PF4J and Spring (MVC, Boot, ..)? What persistence layer does it use (ideally JPA, eventually with other implementations besides Hibernate - Eclipse Link for example)?

What means scalable is small core (entities, repositories, controllers, ..) and plugins (new entities, repositories, controllers, ..).

[hank-cp]

In our commercial project, which is based on sbp, we use jooq + sfm as persistence midware. mybatis is also a fine option. Jpa/Hibernate is NOT on my table from the very beginning:)