What happens for in-progress job when do restart java

Question

When the java app in the middle of the service process restarts, waits for the process and after finishing that continued or does abort the process.

Answer 1

Depends on which process we are talking about, in-flight http requests are killed, but this behaviour can be configured, see https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#web.graceful-shutdown .