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How should you setup a Spring entity that uses an Enum?

I have set up a spring-boot project and provided the code below so hopefully, someone can tell me the correct way this should be done.

I have a Spring entity setup

In my project I'm using Jhipster Spring Boot and I would like to start 2 instances of one microservise at the same time, but on different instances of a database (MongoDB).

In this microservice I have classes, services, rests that are used for collections A, B C,.. for which now I would like to have also history collections A_history, B_history, C_history (that are structured exactly the same like A, B, C) stored in separated instance of a database. It makes no sense to me to create "really separated" microservice since I would have to copy all logic from the first one and end up with doubled code that is very hard to maintain. So, the idea is to have 2 instances of the same microservice, one for A, B, C collections stored in "MicroserviceDB" and second for A_history, B_history, C_history collections stored in "HistoryDB".

I've tried with creating 2 profiles, but when I start from a command line History microservice, it is started ok, but if I also try to start "original" microservice at the same time, it is started but immediately history service becomes "original" microservice. Like they cannot work at the same time.

Is this concept even possible in microservice architecture? Does anyone have an idea how to make this to work, or have some other solution for my problem?

Thanks.

application.yml

I have a very strange error happening

I have a program developed in Java WEB using Hibernate to connect to the MySQL Database The program is working correctly on several computers here but there is a computer that the program does not work!

I already tried to change the version of the server, the JDK and even the IDE and even then on this computer the program is not working

The error mentions that "could not instantiate test object" but I'm not doing any tests on any classes / objects on any computer where the project is working

Log

I would like to retrieve some data from the database, but there are two errors, NullPointerException and "Unable to locater persister". There are null values ​​in my database, how can they be skipped? Shouldn't it retrieve the tuple with that specific primary key I provided in session.get? Then the tuple exists in my database, so why does it tell me it's not persistent? Thank you.

I have reason to believe Spring Boot is not scanning for, at a minimum, an entity class despite the entity being in a sub-sub-package of the main package. I had gotten it to work with an @ComponentScan annotation, at least somewhat. However, I noticed another component also was not running. I'm sure this something very simple because this is a very close copy from a different package.

Note: I tried adding @ComponentScan, @EntityScan,@EnableJpaRepositories. This had gotten rid of the original error, but it did not pick up @Service GenerateFileService (shown below), so I added the corresponding package to all of the annotations. I had thought @SpringBootApplication would automagically find all the relevant Spring beans provided all classes were under a sub-package of the Application, but this was not so.

The stack trace is:

my log

I am stuck with an issue in defining my Hibernate entity. Which is defined as follows:

Entity Consent:

I have the following code

Repo

EDIT: Added the whole stack trace

I have an Class "DGuild" with a couple fields in the Table.
I also have an @Transient field which should not appear in the database table.

But since I added the @Transient annotation it crashes with the following error: