GH-47 - Treat efferent dependencies of configuration properties classes as simple dependencies.

spring-modulith-integration-test/src/main/java/com/acme/myproject/moduleC/SomeValueC.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.acme.myproject.moduleC;
+
+/**
+ * @author Oliver Drotbohm
+ */
+public class SomeValueC {}

spring-modulith-integration-test/src/main/java/com/acme/myproject/moduleD/ConfigurationPropertiesD.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.acme.myproject.moduleD;
+
+import lombok.RequiredArgsConstructor;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+import com.acme.myproject.moduleC.SomeValueC;
+
+/**
+ * @author Oliver Drotbohm
+ */
+@ConfigurationProperties
+@RequiredArgsConstructor
+class ConfigurationPropertiesD {
+
+	private final SomeValueC value;
+}

spring-modulith-integration-test/src/test/java/com/acme/myproject/ModulithTest.java

@@ -19,6 +19,7 @@ import static org.assertj.core.api.Assertions.*;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.modulith.model.ApplicationModule;
+import org.springframework.modulith.model.ApplicationModule.DependencyType;
 import org.springframework.modulith.model.ApplicationModules;
 import org.springframework.modulith.model.ApplicationModules.Filters;
 import org.springframework.modulith.model.Violations;
@@ -84,4 +85,20 @@ class ModulithTest {
 					.doesNotContain("moduleA");
 		});
 	}
+
+	@Test // GH-47
+	void configrationPropertiesTypesEstablishSimpleDependency() {
+
+		var modules = ApplicationModules.of(Application.class, DEFAULT_EXCLUSIONS);
+
+		assertThat(modules.getModuleByName("moduleD")).hasValueSatisfying(it -> {
+
+			assertThat(it.getDependencies(modules, DependencyType.DEFAULT))
+					.map(ApplicationModule::getName)
+					.contains("moduleC"); // ConfigurationProperties -> Value
+
+			assertThat(it.getDependencies(modules, DependencyType.USES_COMPONENT))
+					.isEmpty();
+		});
+	}
 }