diff --git a/spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassEnhancer.java b/spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassEnhancer.java
index 4d487d2b573..2521a0f2f5a 100644
--- a/spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassEnhancer.java
+++ b/spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassEnhancer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -225,7 +225,6 @@ class ConfigurationClassEnhancer {
 			};
 			return new TransformingClassGenerator(cg, transformer);
 		}
-
 	}
 
 
diff --git a/spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassPostProcessor.java b/spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassPostProcessor.java
index 336ce095626..2f77088aace 100644
--- a/spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassPostProcessor.java
+++ b/spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassPostProcessor.java
@@ -388,11 +388,11 @@ public class ConfigurationClassPostProcessor implements BeanDefinitionRegistryPo
 		});
 
 		// Detect any custom bean name generation strategy supplied through the enclosing application context
-		SingletonBeanRegistry sbr = null;
-		if (registry instanceof SingletonBeanRegistry _sbr) {
-			sbr = _sbr;
+		SingletonBeanRegistry singletonRegistry = null;
+		if (registry instanceof SingletonBeanRegistry sbr) {
+			singletonRegistry = sbr;
 			if (!this.localBeanNameGeneratorSet) {
-				BeanNameGenerator generator = (BeanNameGenerator) sbr.getSingleton(
+				BeanNameGenerator generator = (BeanNameGenerator) singletonRegistry.getSingleton(
 						AnnotationConfigUtils.CONFIGURATION_BEAN_NAME_GENERATOR);
 				if (generator != null) {
 					this.componentScanBeanNameGenerator = generator;
@@ -453,8 +453,8 @@ public class ConfigurationClassPostProcessor implements BeanDefinitionRegistryPo
 		while (!candidates.isEmpty());
 
 		// Register the ImportRegistry as a bean in order to support ImportAware @Configuration classes
-		if (sbr != null && !sbr.containsSingleton(IMPORT_REGISTRY_BEAN_NAME)) {
-			sbr.registerSingleton(IMPORT_REGISTRY_BEAN_NAME, parser.getImportRegistry());
+		if (singletonRegistry != null && !singletonRegistry.containsSingleton(IMPORT_REGISTRY_BEAN_NAME)) {
+			singletonRegistry.registerSingleton(IMPORT_REGISTRY_BEAN_NAME, parser.getImportRegistry());
 		}
 
 		// Store the PropertySourceDescriptors to contribute them Ahead-of-time if necessary
diff --git a/spring-context/src/test/java/org/springframework/context/annotation/ConfigurationClassPostProcessorAotContributionTests.java b/spring-context/src/test/java/org/springframework/context/annotation/ConfigurationClassPostProcessorAotContributionTests.java
index 92c82717ac1..9b7777cbf9f 100644
--- a/spring-context/src/test/java/org/springframework/context/annotation/ConfigurationClassPostProcessorAotContributionTests.java
+++ b/spring-context/src/test/java/org/springframework/context/annotation/ConfigurationClassPostProcessorAotContributionTests.java
@@ -101,8 +101,8 @@ class ConfigurationClassPostProcessorAotContributionTests {
 				initializer.accept(freshBeanFactory);
 				freshContext.refresh();
 				assertThat(freshBeanFactory.getBeanPostProcessors()).filteredOn(ImportAwareAotBeanPostProcessor.class::isInstance)
-						.singleElement().satisfies(postProcessor -> assertPostProcessorEntry(postProcessor, ImportAwareConfiguration.class,
-								ImportConfiguration.class));
+						.singleElement().satisfies(postProcessor ->
+								assertPostProcessorEntry(postProcessor, ImportAwareConfiguration.class, ImportConfiguration.class));
 				freshContext.close();
 			});
 		}
@@ -245,6 +245,7 @@ class ConfigurationClassPostProcessorAotContributionTests {
 		}
 	}
 
+
 	@Nested
 	class PropertySourceTests {
 
@@ -410,9 +411,9 @@ class ConfigurationClassPostProcessorAotContributionTests {
 		@PropertySource("classpath:org/springframework/context/annotation/p?.properties")
 		static class PropertySourceWithWildcardLocationPatternConfiguration {
 		}
-
 	}
 
+
 	@Nested
 	class ConfigurationClassProxyTests {
 
@@ -432,15 +433,14 @@ class ConfigurationClassPostProcessorAotContributionTests {
 					getRegisteredBean(CglibConfiguration.class))).isNotNull();
 		}
 
-
 		private RegisteredBean getRegisteredBean(Class<?> bean) {
 			this.beanFactory.registerBeanDefinition("test", new RootBeanDefinition(bean));
 			this.processor.postProcessBeanFactory(this.beanFactory);
 			return RegisteredBean.of(this.beanFactory, "test");
 		}
-
 	}
 
+
 	@Nullable
 	private BeanFactoryInitializationAotContribution getContribution(Class<?>... types) {
 		DefaultListableBeanFactory beanFactory = new DefaultListableBeanFactory();
@@ -458,8 +458,8 @@ class ConfigurationClassPostProcessorAotContributionTests {
 				.containsExactly(entry(key.getName(), value.getName()));
 	}
 
-	static class CustomPropertySourcesFactory extends DefaultPropertySourceFactory {
 
+	static class CustomPropertySourcesFactory extends DefaultPropertySourceFactory {
 	}
 
 }
diff --git a/spring-core/src/main/java/org/springframework/cglib/core/ReflectUtils.java b/spring-core/src/main/java/org/springframework/cglib/core/ReflectUtils.java
index 9bd022ccee5..33c44706d6d 100644
--- a/spring-core/src/main/java/org/springframework/cglib/core/ReflectUtils.java
+++ b/spring-core/src/main/java/org/springframework/cglib/core/ReflectUtils.java
@@ -75,7 +75,7 @@ public class ReflectUtils {
 		Throwable throwable = null;
 		try {
 			classLoaderDefineClass = ClassLoader.class.getDeclaredMethod("defineClass",
-							String.class, byte[].class, Integer.TYPE, Integer.TYPE, ProtectionDomain.class);
+					String.class, byte[].class, Integer.TYPE, Integer.TYPE, ProtectionDomain.class);
 		}
 		catch (Throwable t) {
 			classLoaderDefineClass = null;
diff --git a/spring-core/src/main/java/org/springframework/cglib/proxy/MethodProxy.java b/spring-core/src/main/java/org/springframework/cglib/proxy/MethodProxy.java
index ca468ca4324..de3e7de1b03 100644
--- a/spring-core/src/main/java/org/springframework/cglib/proxy/MethodProxy.java
+++ b/spring-core/src/main/java/org/springframework/cglib/proxy/MethodProxy.java
@@ -57,7 +57,7 @@ public class MethodProxy {
 		proxy.createInfo = new CreateInfo(c1, c2);
 
 		// SPRING PATCH BEGIN
-		if (!c1.isInterface() && c1 != Object.class && !Factory.class.isAssignableFrom(c2)) {
+		if (c1 != Object.class && c1.isAssignableFrom(c2.getSuperclass()) && !Factory.class.isAssignableFrom(c2)) {
 			// Try early initialization for overridden methods on specifically purposed subclasses
 			try {
 				proxy.init();