The bean factory performs several steps before a bean is ready is use:
  Instantiate.
  Populate properties.
  The factory calls BeanNameAware\'s setBeanName() method.
  The factory calls BeanFactoryAware\'s setBeanFactory() method.
  PostProcessBeforeInitialization() method is called if BeanPostProcessor associated with the bean.
  An init-method is called, if specified.
  Finally, PostProcessAfterInitialization() is called if BeanPostProcessor associated with it.