the issue of doCreateBean

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#doCreateBean

if (earlySingletonExposure) {
			Object earlySingletonReference = getSingleton(beanName, false);
			if (earlySingletonReference != null) {
				if (exposedObject == bean) {
					exposedObject = earlySingletonReference;
				}

exposedObject = earlySingletonReference;
If this assignment is indeed not redundant, it suggests that the custom getEarlyBeanReference method results in the reference no longer pointing to the final, fully initialized bean. Consequently, would the subsequent execution of registered bean destruction callbacks become unnecessary in this scenario?

Start at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#doCreateBean and inspect the earlySingletonExposure branch, especially the assignment to exposedObject. Determine whether getEarlyBeanReference can make the exposed reference differ from the fully initialized bean and whether destruction callbacks are still required. Done means resolving whether the behavior is redundant or incorrect and documenting or correcting the confirmed behavior.