Exclude SharedMetadataReaderFactoryContextInitializer from AOT contexts

SharedMetadataReaderFactoryContextInitializer exposes an additional
bean post processor that is only relevant when parsing the bean
factory, auto-configurations in particular. Given that this does not
happen in an AOT-optimized context, this commit excludes the bean
and makes sure the initializer does not do anything at runtime.

Closes gh-33216

Author: snicoll

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

@@ -18,11 +18,13 @@
 
 import java.util.function.Supplier;
 
+import org.springframework.aot.AotDetector;
 import org.springframework.beans.BeansException;
 import org.springframework.beans.MutablePropertyValues;
 import org.springframework.beans.factory.BeanClassLoaderAware;
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
+import org.springframework.beans.factory.aot.BeanRegistrationExcludeFilter;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
 import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
@@ -31,6 +33,7 @@
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 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;
@@ -51,14 +54,17 @@
  * @author Phillip Webb
  * @author Dave Syer
  */
-class SharedMetadataReaderFactoryContextInitializer
-		implements ApplicationContextInitializer<ConfigurableApplicationContext>, Ordered {
+class SharedMetadataReaderFactoryContextInitializer implements
+		ApplicationContextInitializer<ConfigurableApplicationContext>, Ordered, BeanRegistrationExcludeFilter {
 
 	public static final String BEAN_NAME = "org.springframework.boot.autoconfigure."
 			+ "internalCachingMetadataReaderFactory";
 
 	@Override
 	public void initialize(ConfigurableApplicationContext applicationContext) {
+		if (AotDetector.useGeneratedArtifacts()) {
+			return;
+		}
 		BeanFactoryPostProcessor postProcessor = new CachingMetadataReaderFactoryPostProcessor(applicationContext);
 		applicationContext.addBeanFactoryPostProcessor(postProcessor);
 	}
@@ -68,6 +74,11 @@ public int getOrder() {
 		return 0;
 	}
 
+	@Override
+	public boolean isExcludedFromAotProcessing(RegisteredBean registeredBean) {
+		return BEAN_NAME.equals(registeredBean.getBeanName());
+	}
+
 	/**
 	 * {@link BeanDefinitionRegistryPostProcessor} to register the
 	 * {@link CachingMetadataReaderFactory} and configure the

spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/spring/aot.factories

@@ -7,3 +7,6 @@ org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingP
 
 org.springframework.beans.factory.aot.BeanRegistrationAotProcessor=\
 org.springframework.boot.autoconfigure.flyway.ResourceProviderCustomizerBeanRegistrationAotProcessor
+
+org.springframework.beans.factory.aot.BeanRegistrationExcludeFilter=\
+org.springframework.boot.autoconfigure.SharedMetadataReaderFactoryContextInitializer