The ApplicationListener we deploy to capture events published during a test method execution now uses an InheritableThreadLocal so that events published on threads spawned from the main test execution thread also end up in the PublishedEvents instance prepared for the test method.
Also, the registration of that particular event listener avoids duplicate registrations by inspecting the application context in use for the test method execution for an already registered listener, falling back to registering one.
We now optionally integrate with the JGraphT library to calculate the topological order of modules based on their dependency structure. That order is then exposed in ApplicationModules' iteration and via ….getComparator().
Renamed FormattableJavaClass to FormattableType and allow it to be created from a plain Class as well.
In case AssertJ is on the classpath, test cases using the PublishedEventsExtension (for example, implicitly activated via @ApplicationModuleTest) can get an AssertablePublishedEvents injected into the method. In contrast to the original PublishedEvents, that one acts as AssertProvider so that it can be used in assertThat(…).… expressions to verify application events published.
Polished API in PublishedEvents for a more consistent experience.
Introduce Spring Modulith Actuator module to expose the application module structure as Spring Boot actuator. This required a Spring Modulith Runtime module to be extracted from the Spring Modulith Observability one. The former now contains the auto-configured ApplicationRuntime and ApplicationModulesRuntime bean instances to be able to bootstrap a ApplicationModules asynchronously on application startup. The actuator module then contains a Spring Boot @Endpoint implementation consuming the ApplicationModules to render JSON describing the application module structure.
Moved TestUtils from spring-modulith-test to spring-modulith-integration-test as it's only used there and doesn't need to be exposed to user applications.
Adapt to API changes in Micrometer and Spring Boot's test context loader API now exposing a checked ContextLoadException to signal failures during ApplicationContext bootstraps.
Overhauled the module canvas in various ways. By default, we now skip "empty" rows. In other words, if we do not find any published events for example, we skip the entire row. CanvasOptions.revealEmptyRows() can be used to keep those empty rows around. We now also expose all value types and Spring bean references.
Refactored the dependency lookup APIs on ApplicationModule. Both DependencyType and DependencyDepth are now top-level types. Also, ApplicationModuleDependency and ApplicationModuleDependencies were introduced as explicit types. In the course of that, ApplicationModule.getDependencies(…) has got its return type changed from List<ApplicationModule> to ApplicationModuleDependencies. The internal ModuleDependency type has been renamed to QualifiedDependency.
Also, keep autoconfiguration packages as String array to avoid ClassCastExceptions when the bean definition's constructor arguments are inspected manually (like in AutoConfigurationPackages.addBasePackages(…).
