Adding Graceful shutdown in Java application

Question

I need to add graceful shutdown for application that will be deployed using kubernetes.

I was able to find the documentation for graceful shutdown from spring boot version 2.3.0

https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#web.graceful-shutdown.

There are two types of applications in which I need to add graceful shutdown

1. Spring boot application version less than 2

2. Normal Spring applications without spring boot.

kindly suggest me the best practices and approaches . Thanks in advance

Thanks, Manzoor

Answer 1

For a spring based application you already found the documentation.

If a webapp (without spring) wants to react before Tomcat is going down, it can implement a ServletContextListener.

If you have a generic java application, you may want to install a shutdown hook.