Memory Layout of Java Process
Garbage Collection
Hibernate(ORM in Java)
Spring boot, Spring Framework
  Spring Terms: @Configuration, @SpringBootApplication, AOP, application.properties / yml, ApplicationContext, Auto-configuration, Bean, BOM, Component scan, Convention over configuration, DataSource / EntityManagerFactory, Dependency Injection, DispatcherServlet, Embedded server vs WAR, IoC, Profiles, Servlet container, Spring Boot Actuator, Spring Data / JPA, Spring MVC, Spring Security, Starters, WebApplicationInitializer