Drop SharedMetadataReaderFactoryContextInitializer

Closes gh-47687

Author: philwebb

core/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/SharedMetadataReaderFactoryContextInitializer.java

@@ -33,7 +33,6 @@
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
 import org.springframework.beans.factory.support.BeanDefinitionRegistryPostProcessor;
 import org.springframework.beans.factory.support.RegisteredBean;
-import org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory;
 import org.springframework.context.ApplicationContextInitializer;
 import org.springframework.context.ApplicationListener;
 import org.springframework.context.ConfigurableApplicationContext;
@@ -187,20 +186,19 @@ private void configureConfigurationClassPostProcessor(ConfigurationClassPostProc
 	/**
 	 * {@link FactoryBean} to create the shared {@link MetadataReaderFactory}.
 	 */
-	static class SharedMetadataReaderFactoryBean
-			implements FactoryBean<ConcurrentReferenceCachingMetadataReaderFactory>, ResourceLoaderAware,
-			ApplicationListener<ContextRefreshedEvent> {
+	static class SharedMetadataReaderFactoryBean implements FactoryBean<CachingMetadataReaderFactory>,
+			ResourceLoaderAware, ApplicationListener<ContextRefreshedEvent> {
 
 		@SuppressWarnings("NullAway.Init")
-		private ConcurrentReferenceCachingMetadataReaderFactory metadataReaderFactory;
+		private CachingMetadataReaderFactory metadataReaderFactory;
 
 		@Override
 		public void setResourceLoader(ResourceLoader resourceLoader) {
-			this.metadataReaderFactory = new ConcurrentReferenceCachingMetadataReaderFactory(resourceLoader);
+			this.metadataReaderFactory = new CachingMetadataReaderFactory(resourceLoader);
 		}
 
 		@Override
-		public ConcurrentReferenceCachingMetadataReaderFactory getObject() throws Exception {
+		public CachingMetadataReaderFactory getObject() throws Exception {
 			return this.metadataReaderFactory;
 		}
 

core/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/SharedMetadataReaderFactoryContextInitializerTests.java

@@ -28,11 +28,11 @@
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.WebApplicationType;
 import org.springframework.boot.autoconfigure.SharedMetadataReaderFactoryContextInitializer.CachingMetadataReaderFactoryPostProcessor;
-import org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory;
 import org.springframework.context.ApplicationContextInitializer;
 import org.springframework.context.annotation.AnnotationConfigUtils;
 import org.springframework.context.annotation.ConfigurationClassPostProcessor;
 import org.springframework.context.support.GenericApplicationContext;
+import org.springframework.core.type.classreading.CachingMetadataReaderFactory;
 import org.springframework.test.util.ReflectionTestUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -83,7 +83,7 @@ void initializeWhenUsingSupplierDecorates() {
 		assertThat(bean).isSameAs(configurationAnnotationPostProcessor);
 		then(configurationAnnotationPostProcessor).should()
 			.setMetadataReaderFactory(assertArg((metadataReaderFactory) -> assertThat(metadataReaderFactory)
-				.isInstanceOf(ConcurrentReferenceCachingMetadataReaderFactory.class)));
+				.isInstanceOf(CachingMetadataReaderFactory.class)));
 	}
 
 	static class TestConfig {