ThreadLocal
synchronized
Environment
CAS(Compare And Swap)
Future
ApplicationContextInitializer
BeanFactoryPostProcessor
BeanPostProcessor
ApplicationContextEvent
ApplicationListener
ApplicationContext
ApplicationContext Refresh - createApplicationContext(), context.setApplicationStartup()
ApplicationContext Refresh - prepareContext()
ApplicationContext Refresh - refreshContext() 전반부
ApplicationContext Refresh - refreshContext() 후반부
ApplicationContext Refresh - afterRefresh(), 정리
다중 접속 서버 구현 방식
java.nio
Tomcat BIO Connector & NIO Connector
AbstractFilterRegistrationBean
스프링 시큐리티 초기화 관련 클래스
Tomcat, Embedded Tomcat
Virtual Thread
@Transactional
스프링 이벤트