code: protected AbstractBeanDefinition createBeanDefinition(String className, String parentName)
        throws ClassNotFoundException {
      return BeanDefinitionReaderUtils.createBeanDefinition(parentName, className, null);
    }
docs: Create a bean definition for the given class name and parent name.
  
  @param className the name of the bean class
  @param parentName the name of the bean's parent bean
  @return the newly created bean definition
  @throws java.lang.ClassNotFoundException
  if bean class resolution was attempted but failed