Spring Context not loading with lazy-init from version 14.0.1

[michael4screen]

Expected Behavior

Upgrade to version 14.0.1 is a patch version and does not include breaking changes.

Current Behavior

We are running spring boot integration tests with spring.main.lazy-initialization: true Context cannot be loaded anymore:

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.github.kagkarlsson.scheduler.boot.autoconfigure.DbSchedulerAutoConfiguration': Failed to instantiate [com.github.kagkarlsson.scheduler.boot.autoconfigure.DbSchedulerAutoConfiguration$$SpringCGLIB$$0]: No default constructor found

The root cause is this change, to not eagerly load the DbSchedulerStarter: https://github.com/kagkarlsson/db-scheduler/pull/492/files

---

For bug reports

Context

• DB-Scheduler Version : 14.0.2
• Java Version : 21
• Spring Boot (check for Yes) : [X]
• Database and Version : Postgres 16

[kagkarlsson]

It looks like #492 might have to be reverted @NicklasWallgren I can reproduce. Not familiar with how lazy-loading in Spring works exactly, so not sure what the fix might be.

Not sure why it would suddenly need to use the default constructor when it normally does not seem to.

[NicklasWallgren]

@kagkarlsson The eagerDbSchedulerStarter needs to be declared as a static method, as it's defined in the same AutoConfiguration class as the DbSchedulerStarter bean, which has a args-constructor.

My bad - it works fine in our externalized configuration (since it's in a separate configuration class with a no-args constructor). I'll open a PR.

NOTE: Beans of this type will be instantiated very early in the spring application lifecycle so they should generally be declared static and not have any dependencies.

https://docs.spring.io/spring-boot/api/java/org/springframework/boot/LazyInitializationExcludeFilter.html#:~:text=NOTE%3A%20Beans%20of%20this%20type%20will%20be%20instantiated%20very%20early%20in%20the%20spring%20application%20lifecycle%20so%20they%20should%20generally%20be%20declared%20static%20and%20not%20have%20any%20dependencies.

[kagkarlsson]

Ok, thanks, will have a look 👍

[kagkarlsson]

🎉 This issue has been resolved in v14.0.3 (Release Notes)