Spring Boot provides a library called Spring Dev Tools [1] that makes development easier by providing things like auto-restart on source code changes. This is implemented by an additional classloader which can result in problems with object (de-)serialization (see linked support case).

Let's evaluate if we can improve things on our side to avoid such problems.

[1] https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#using.devtools