Hi, hope you're having a great week.
I see that you're running into a problem where Spring and Hibernate 5 is throwing a NullPointerException, while Spring and Hibernate 4 are working just fine. It's a head-scratcher for sure! I'd love to use my expertise to dig deep into this issue and figure out why Spring 5 is acting up while Spring 4 is smooth sailing.
I'm confident that with my experience in working with Spring and Hibernate, and my knack for solving problems, I'll be able to get to the bottom of this issue in no time. I can't wait to discuss the project further and show you what I can do to successfully migrate your Backend to Spring and Hibernate 5.
Thanks a bunch for considering me for the job. I'm really excited to help you conquer this challenge.
Warm regards