Use EnableConfigurationProperties to define MessageSourceProperties

Closes gh-42181

Author: wilkinsona

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/context/MessageSourceAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 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.
@@ -30,7 +30,6 @@
 import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
 import org.springframework.boot.autoconfigure.context.MessageSourceAutoConfiguration.MessageSourceRuntimeHints;
 import org.springframework.boot.autoconfigure.context.MessageSourceAutoConfiguration.ResourceBundleCondition;
-import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.MessageSource;
 import org.springframework.context.annotation.Bean;
@@ -59,18 +58,12 @@
 @ConditionalOnMissingBean(name = AbstractApplicationContext.MESSAGE_SOURCE_BEAN_NAME, search = SearchStrategy.CURRENT)
 @AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE)
 @Conditional(ResourceBundleCondition.class)
-@EnableConfigurationProperties
+@EnableConfigurationProperties(MessageSourceProperties.class)
 @ImportRuntimeHints(MessageSourceRuntimeHints.class)
 public class MessageSourceAutoConfiguration {
 
 	private static final Resource[] NO_RESOURCES = {};
 
-	@Bean
-	@ConfigurationProperties(prefix = "spring.messages")
-	public MessageSourceProperties messageSourceProperties() {
-		return new MessageSourceProperties();
-	}
-
 	@Bean
 	public MessageSource messageSource(MessageSourceProperties properties) {
 		ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/context/MessageSourceProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2024 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.
@@ -21,6 +21,7 @@
 import java.time.Duration;
 import java.time.temporal.ChronoUnit;
 
+import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.boot.convert.DurationUnit;
 
 /**
@@ -30,6 +31,7 @@
  * @author Kedar Joshi
  * @since 2.0.0
  */
+@ConfigurationProperties(prefix = "spring.messages")
 public class MessageSourceProperties {
 
 	/**