I am not sure how to address this correctly as I have not the time to produce a minimal example, but after encountering HHH-11133 Closed in Hibernate 5.2.2.Final I switched to the 5.2.4.Final version of hibernate-orm-modules and suddenly encounter

Caused by: org.hibernate.HibernateException: HHH000142: Javassist Enhancement failed:

when loading entities which could be loaded in version 5.2.2.Final without a problem.