AutowireUtils.java

public static Object resolveAutowiringValue(Object autowiringValue, Class<?> requiredType) {
		if (autowiringValue instanceof ObjectFactory && !requiredType.isInstance(autowiringValue)) {
			ObjectFactory<?> factory = (ObjectFactory<?>) autowiringValue;
			if (autowiringValue instanceof Serializable && requiredType.isInterface()) {
				autowiringValue = Proxy.newProxyInstance(requiredType.getClassLoader(),
						new Class<?>[] {requiredType}, new ObjectFactoryDelegatingInvocationHandler(factory));
			}
			else {
				return factory.getObject();
			}
		}
		return autowiringValue;
	}