Prepare method overrides when bean class gets resolved

See gh-31826

spring-beans/src/main/java/org/springframework/beans/factory/support/AbstractAutowireCapableBeanFactory.java

@@ -496,9 +496,6 @@ public abstract class AbstractAutowireCapableBeanFactory extends AbstractBeanFac
 		if (resolvedClass != null && !mbd.hasBeanClass() && mbd.getBeanClassName() != null) {
 			mbdToUse = new RootBeanDefinition(mbd);
 			mbdToUse.setBeanClass(resolvedClass);
-		}
-
-		// Prepare method overrides.
 			try {
 				mbdToUse.prepareMethodOverrides();
 			}
@@ -506,6 +503,7 @@ public abstract class AbstractAutowireCapableBeanFactory extends AbstractBeanFac
 				throw new BeanDefinitionStoreException(mbdToUse.getResourceDescription(),
 						beanName, "Validation of method overrides failed", ex);
 			}
+		}
 
 		try {
 			// Give BeanPostProcessors a chance to return a proxy instead of the target bean instance.

spring-beans/src/main/java/org/springframework/beans/factory/support/AbstractBeanFactory.java

@@ -1503,7 +1503,11 @@ public abstract class AbstractBeanFactory extends FactoryBeanRegistrySupport imp
 			if (mbd.hasBeanClass()) {
 				return mbd.getBeanClass();
 			}
-			return doResolveBeanClass(mbd, typesToMatch);
+			Class<?> beanClass = doResolveBeanClass(mbd, typesToMatch);
+			if (mbd.hasBeanClass()) {
+				mbd.prepareMethodOverrides();
+			}
+			return beanClass;
 		}
 		catch (ClassNotFoundException ex) {
 			throw new CannotLoadBeanClassException(mbd.getResourceDescription(), beanName, mbd.getBeanClassName(), ex);
@@ -1511,6 +1515,10 @@ public abstract class AbstractBeanFactory extends FactoryBeanRegistrySupport imp
 		catch (LinkageError err) {
 			throw new CannotLoadBeanClassException(mbd.getResourceDescription(), beanName, mbd.getBeanClassName(), err);
 		}
+		catch (BeanDefinitionValidationException ex) {
+			throw new BeanDefinitionStoreException(mbd.getResourceDescription(),
+					beanName, "Validation of method overrides failed", ex);
+		}
 	}
 
 	@Nullable