quarkus-reactive-routes fails when using Mutiny.SessionFactory.withSession

[rsvoboda]

Describe the bug

quarkus-reactive-routes based code fails when using Mutiny.SessionFactory.withSession

hibernate-reactive-routes-quickstart is failing since #23719 got merged
Code link https://github.com/quarkusio/quarkus-quickstarts/blob/main/hibernate-reactive-routes-quickstart/src/main/java/org/acme/hibernate/reactive/FruitsRoutes.java#L39

2022-03-01 10:27:25,791 ERROR [org.acm.hib.rea.FruitsRoutes] (vert.x-eventloop-thread-1) Failed to handle request: java.lang.IllegalStateException: The current operation requires a safe (isolated) Vert.x sub-context, but the current context hasn't been flagged as such. You can still use Hibernate Reactive, you just need to avoid using the methods which implicitly require accessing the stateful context, such as MutinySessionFactory#withTransaction and #withSession.
	at io.quarkus.vertx.core.runtime.context.VertxContextSafetyToggle.checkIsSafe(VertxContextSafetyToggle.java:80)
	at io.quarkus.vertx.core.runtime.context.VertxContextSafetyToggle.validateContextIfExists(VertxContextSafetyToggle.java:63)
	at io.quarkus.hibernate.reactive.runtime.customized.CheckingVertxContext.get(CheckingVertxContext.java:46)
	at org.hibernate.reactive.mutiny.impl.MutinySessionFactoryImpl.withSession(MutinySessionFactoryImpl.java:189)
	at org.acme.hibernate.reactive.FruitsRoutes.getAll(FruitsRoutes.java:39)
...

Zulip chat - https://quarkusio.zulipchat.com/#narrow/stream/187038-dev/topic/hibernate-reactive-routes-quickstart/near/273641831
Conclusion: the vert.x http server didn't mark the context as safe

Expected behavior

hibernate-reactive-routes-quickstart is passing

Actual behavior

hibernate-reactive-routes-quickstart is failing

How to Reproduce?

Run hibernate-reactive-routes-quickstart

Output of uname -a or ver

macOS Monterey

Output of java -version

Java 17

GraalVM version (if different from Java)

No response

Quarkus version or git rev

Quarkus main

Build tool (ie. output of mvnw --version or gradlew --version)

No response

Additional information

No response

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