Use ReflectionTestUtils for invoking @DynamicPropertySource methods

Author: nosan

spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/context/DynamicPropertySourceMethodsImporter.java

@@ -46,6 +46,7 @@
 import org.springframework.javapoet.CodeBlock;
 import org.springframework.test.context.DynamicPropertyRegistry;
 import org.springframework.test.context.DynamicPropertySource;
+import org.springframework.test.util.ReflectionTestUtils;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.ReflectionUtils;
@@ -201,7 +202,6 @@ private static GeneratedMethod generateMethod(GenerationContext generationContex
 					code.addModifiers(javax.lang.model.element.Modifier.PRIVATE,
 							javax.lang.model.element.Modifier.STATIC);
 					code.addParameter(DynamicPropertyRegistry.class, DYNAMIC_PROPERTY_REGISTRY);
-
 					if (isMethodAccessible(generatedClass, method)) {
 						code.addStatement(CodeBlock.of("$T.$L($L)", method.getDeclaringClass(), method.getName(),
 								DYNAMIC_PROPERTY_REGISTRY));
@@ -211,12 +211,9 @@ private static GeneratedMethod generateMethod(GenerationContext generationContex
 						code.beginControlFlow("try");
 						code.addStatement("$T<?> clazz = $T.forName($S, $T.class.getClassLoader())", Class.class,
 								ClassUtils.class, ClassName.get(method.getDeclaringClass()), generatedClass.getName());
-						code.addStatement("$T method = $T.findMethod(clazz, $S, $T.class)", Method.class,
-								ReflectionUtils.class, method.getName(), DynamicPropertyRegistry.class);
-						code.addStatement("$T.notNull(method, $S)", Assert.class,
-								"Method '" + method.getName() + "' is not found");
-						code.addStatement("$T.makeAccessible(method)", ReflectionUtils.class);
-						code.addStatement("$T.invokeMethod(method, null, $L)", ReflectionUtils.class,
+						// ReflectionTestUtils can be used here because
+						// @DynamicPropertyRegistry in a test module.
+						code.addStatement("$T.invokeMethod(clazz, $S, $L)", ReflectionTestUtils.class, method.getName(),
 								DYNAMIC_PROPERTY_REGISTRY);
 						code.nextControlFlow("catch ($T ex)", ClassNotFoundException.class);
 						code.addStatement("throw new $T(ex)", RuntimeException.class);