GH-1062 - ApplicationModuleExporter now exposes ApplicationModuleInitializer beans.

spring-modulith-core/src/main/java/org/springframework/modulith/core/ApplicationModule.java

@@ -301,6 +301,23 @@ public class ApplicationModule implements Comparable<ApplicationModule> {
 				.toList();
 	}
 
+	/**
+	 * Returns all {@link SpringBean}s assignable to the given type.
+	 *
+	 * @param type must not be {@literal null}.
+	 * @return will never be {@literal null}.
+	 * @since 1.4
+	 */
+	public List<SpringBean> getSpringBeans(Class<?> type) {
+
+		Assert.notNull(type, "Type must not be null!");
+
+		return getSpringBeansInternal().stream() //
+				.map(it -> SpringBean.of(it, this)) //
+				.filter(it -> it.isAssignableTo(type))
+				.toList();
+	}
+
 	/**
 	 * Returns the {@link ArchitecturallyEvidentType} for the given type.
 	 *

spring-modulith-core/src/main/java/org/springframework/modulith/core/SpringBean.java

@@ -106,6 +106,19 @@ public class SpringBean {
 		return ArchitecturallyEvidentType.of(type, module.getSpringBeansInternal());
 	}
 
+	/**
+	 * Returns whether the bean is assignable to the given type.
+	 *
+	 * @param type must not be {@literal null}.
+	 * @since 1.4
+	 */
+	public boolean isAssignableTo(Class<?> type) {
+
+		Assert.notNull(type, "Type must not be null!");
+
+		return this.type.isAssignableTo(type);
+	}
+
 	/*
 	 * (non-Javadoc)
 	 * @see java.lang.Object#equals(java.lang.Object)

spring-modulith-core/src/main/java/org/springframework/modulith/core/util/ApplicationModulesExporter.java

@@ -30,6 +30,7 @@ import java.util.stream.Collector;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import org.springframework.modulith.ApplicationModuleInitializer;
 import org.springframework.modulith.core.ApplicationModule;
 import org.springframework.modulith.core.ApplicationModuleDependency;
 import org.springframework.modulith.core.ApplicationModuleIdentifier;
@@ -37,6 +38,7 @@ import org.springframework.modulith.core.ApplicationModules;
 import org.springframework.modulith.core.DependencyType;
 import org.springframework.modulith.core.NamedInterface;
 import org.springframework.modulith.core.NamedInterfaces;
+import org.springframework.modulith.core.SpringBean;
 import org.springframework.util.Assert;
 
 import com.tngtech.archunit.core.domain.JavaClass;
@@ -137,6 +139,10 @@ public class ApplicationModulesExporter {
 
 		if (details.equals(Details.FULL)) {
 			json.put("namedInterfaces", toNamedInterfaces(module.getNamedInterfaces()));
+			json.put("initializers", module.getSpringBeans(ApplicationModuleInitializer.class).stream()
+					.map(SpringBean::getType)
+					.map(JavaClass::getName)
+					.toList());
 		}
 
 		json.put("dependencies", module.getDirectDependencies(modules).stream() //