Use constructor injection in SpringBootRepositoryRestConfigurer

Closes gh-25819

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/rest/RepositoryRestMvcAutoConfiguration.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2021 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.
@@ -16,6 +16,7 @@
 
 package org.springframework.boot.autoconfigure.data.rest;
 
+import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
@@ -30,6 +31,7 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
 import org.springframework.data.rest.core.config.RepositoryRestConfiguration;
 import org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguration;
+import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for Spring Data Rest's MVC
@@ -56,8 +58,9 @@ import org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguratio
 public class RepositoryRestMvcAutoConfiguration {
 
 	@Bean
-	public SpringBootRepositoryRestConfigurer springBootRepositoryRestConfigurer() {
-		return new SpringBootRepositoryRestConfigurer();
+	public SpringBootRepositoryRestConfigurer springBootRepositoryRestConfigurer(
+			ObjectProvider<Jackson2ObjectMapperBuilder> objectMapperBuilder, RepositoryRestProperties properties) {
+		return new SpringBootRepositoryRestConfigurer(objectMapperBuilder.getIfAvailable(), properties);
 	}
 
 }

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/rest/SpringBootRepositoryRestConfigurer.java

 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2021 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.
@@ -38,10 +38,16 @@ import org.springframework.web.servlet.config.annotation.CorsRegistry;
 class SpringBootRepositoryRestConfigurer implements RepositoryRestConfigurer {
 
 	@Autowired(required = false)
-	private Jackson2ObjectMapperBuilder objectMapperBuilder;
+	private final Jackson2ObjectMapperBuilder objectMapperBuilder;
 
 	@Autowired
-	private RepositoryRestProperties properties;
+	private final RepositoryRestProperties properties;
+
+	SpringBootRepositoryRestConfigurer(Jackson2ObjectMapperBuilder objectMapperBuilder,
+			RepositoryRestProperties properties) {
+		this.objectMapperBuilder = objectMapperBuilder;
+		this.properties = properties;
+	}
 
 	@Override
 	@SuppressWarnings("deprecation")