We now properly wrap the null value returned as a result from the RabbitMQ event externalization into a CompletableFuture. Tightened test case to prevent regressions going forward.
The default EventPublicationRegistry previously erroneously called find*In*completePublications(), i.e. returned incomplete publications when it was supposed to look up the completed ones. To be able to do the latter we need to extend EventPublicationRepository and introduce a query execution for all completed publications.
As we'd normally only chance API in major versions, but the bugfix needing to go into a bugfix release, the new method is introduced as default method rejecting the execution in case a currently existing repository implementation does not implement it. This allows us to adapt the implementations we ship to support the bugfix, but will require other implementations to ship an adapted version. This means we can ship a release that's not breaking assuming one of the official store implementations is used.
Spring Boot configures Hibernate Validator in a way that the latter looks up the components it needs to instantiate via the Spring container. That in turn then creates prototype instances of the types requested. This means, implementations of e.g. ConstraintValidator do not need to be explicitly marked as Spring beans, but could still declare dependencies to other Spring beans. If such a dependency crosses a module boundary, we currently fail to detect that implicitly established module dependency.
This is now fixed by considering ConstraintValidator implementations Spring beans implicitly in out bootstrap dependency analysis.
We now explicitly exclude classes generated by Spring AOT in the architectural model. For technical reasons, they might introduce dependencies to application components considered module internals otherwise. Also, proxies generated do not need to be considered either.
We now explicitly handle CompletableFuture instances returned from transactional event listeners by registering the completion handlers only on success, the debug logging on failure and immediately return the decorated instance.
Previously, a failed CompletableFuture instance would still have the publication marked completed as it doesn't cause any exception being thrown and thus ultimately ending up in the code path that issues the completion.
