Update Hibernate ORM package/class processing rules

[marko-bekhta]

fixes #39299

I am not 100% sure about the changes in the first commit, but I'd expect that the package list should be explicit and not include subpackages. With the current behaviour DB objects for other PU in our tests were created by "accident" since the other pu did not explicitly define the properties to create them...

[quarkus-bot]

/cc @gsmet (hibernate-orm), @yrodiere (hibernate-orm)

[yrodiere]

I am not 100% sure about the changes in the first commit, but I'd expect that the package list should be explicit and not include subpackages

According to documentation, this is an incorrect assumption:

https://quarkus.io/guides/hibernate-orm#multiple-persistence-units-attaching-model-classes

[yrodiere]

LGTM, thanks.

Two things to note though:

1. You added the tests to the jpa-postgresql integration tests, which is quite odd. This is not specific to postgres, is it? And there's nothing specific to native compilation, either? If so I'd have expected the test to be in extensions/hibernate-orm/deployment/src/test/java .
2. I understand the problem with recursive packages, but I'm not quite sure why you had to do it in the same commit as the actual fix, and I suspect if we change this "for correctness", we'd want to update other ITs as well? (jpa-h2, jpa-mysql, ...)

Anyway... None of this should block the merging of this PR, so +1 to merge when you're ready @marko-bekhta.

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit 9d58018.

Failing Jobs

Status	Name	Step	Failures	Logs	Raw logs	Build scan
✖	Native Tests - Data4	Upload build reports	⚠️ Check →	Logs	Raw logs	🚧
✖	Quickstarts Compilation - JDK 17	Compile Quickstarts	Failures	Logs	Raw logs	🚧

Failures

⚙️ Quickstarts Compilation - JDK 17 #

- Failing: security-webauthn-quickstart security-webauthn-reactive-quickstart 

📦 security-webauthn-quickstart

✖ Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.11.0:testCompile (default-testCompile) on project security-webauthn-quickstart: Compilation failure

📦 security-webauthn-reactive-quickstart

✖ Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.11.0:testCompile (default-testCompile) on project security-webauthn-reactive-quickstart: Compilation failure