Polish "Add spring.validation.method.adapt-constraint-violations property"

See gh-43886

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/validation/ValidationAutoConfiguration.java

@@ -71,14 +71,13 @@ public class ValidationAutoConfiguration {
 	@Bean
 	@ConditionalOnMissingBean(search = SearchStrategy.CURRENT)
 	public static MethodValidationPostProcessor methodValidationPostProcessor(Environment environment,
-			ObjectProvider<Validator> validator, ObjectProvider<MethodValidationExcludeFilter> excludeFilters,
+			ValidationProperties validationProperties, ObjectProvider<Validator> validator,
-			ObjectProvider<ValidationProperties> validationProperties) {
+			ObjectProvider<MethodValidationExcludeFilter> excludeFilters) {
 		FilteredMethodValidationPostProcessor processor = new FilteredMethodValidationPostProcessor(
 				excludeFilters.orderedStream());
 		boolean proxyTargetClass = environment.getProperty("spring.aop.proxy-target-class", Boolean.class, true);
 		processor.setProxyTargetClass(proxyTargetClass);
-		processor
+		processor.setAdaptConstraintViolations(validationProperties.getMethod().isAdaptConstraintViolations());
-			.setAdaptConstraintViolations(validationProperties.getObject().getMethod().isAdaptConstraintViolations());
 		processor.setValidatorProvider(validator);
 		return processor;
 	}

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/validation/ValidationProperties.java

@@ -16,14 +16,18 @@
 
 package org.springframework.boot.autoconfigure.validation;
 
+import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Role;
 
 /**
- * Configuration properties for validation.
+ * {@link ConfigurationProperties @ConfigurationProperties} for validation.
  *
  * @author Yanming Zhou
+ * @author Andy Wilkinson
  * @since 3.5.0
  */
+@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
 @ConfigurationProperties(prefix = "spring.validation")
 public class ValidationProperties {
 

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/validation/ValidationPropertiesTests.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2012-2025 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 org.springframework.boot.autoconfigure.validation;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.validation.beanvalidation.MethodValidationPostProcessor;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link ValidationProperties}.
+ *
+ * @author Andy Wilkinson
+ */
+class ValidationPropertiesTests {
+
+	@Test
+	void adaptConstraintViolationsPropertyDefaultMatchesPostProcessorDefault() {
+		assertThat(new MethodValidationPostProcessor()).extracting("adaptConstraintViolations")
+			.isEqualTo(new ValidationProperties().getMethod().isAdaptConstraintViolations());
+	}
+
+}