@ApplicationModuleTest in Maven multi-module project

[bheino]

In our project, we'd like to put each modulith module into a separate maven module. The project structure looks equivalent to the following:

multi-module-spring-modulith/
├─ application/
├─ module-a/

Packages are structured this way:

application - com.mycompany.appname
module-a - com.mycompany.appname.modulea

This works fine, modulith detects module-a as a separate module when running the application. However, for module-specific tests which use @ApplicationModuleTest in module-a we get the following error:

java.lang.IllegalStateException: Unable to find a @SpringBootConfiguration, you need to use @ContextConfiguration or @SpringBootTest(classes=...) with your test

When the class annotated with @SpringBootApplication is in the same maven module as the @ApplicationModuleTest, everything works as expected.

Of course, I could use @SpringBootTest instead and configure it via classes=... or a @ContextConfiguration. By using this approach, I would lose the automatic slicing of the context from @ApplicationModuleTest and other benefits (like module structure verification, bootstrap mode etc.).

TLDR: Is it possible to use ApplicationModuleTests when each Module is defined in its own maven module? Or is this annotation obsolete in such a scenario?