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How make sure that the scheduler does not run on holiday
Hey Guys,
For my current spring boot project I have been using a @Scheduled
annotation and using cron syntax for running jobs, but now I don't want to schedule jobs on holiday (based on US calendar).
So is there any approach to skip the schedule on holiday.
Thanks for your help in advanced.

Are there any (simple) open source java projects I can study to better my understanding of real world code?
I teach a course in java and springboot for beginners. I would like to walk my students through the code of a real world java or springboot application. Can anyone recommend a good example?

Why does Auth0 allow for direct usage of social logins, but with Keycloak I have to register my app at each Identity Provider first?
So I'm making a project in SpringBoot with Oauth security.
If I use Auth0 as my Authorization Server, I can register an application there and just say that I want user to be able to login with Google an Facebook. That's all it takes.
If I use Keycloak as my Authorization Server, I can also have users choose Google or Facebook as there prefered login, but in order to provide that, I have to register my app with Google and Facebook first.
So how come it's so easy with Auth0 and a little less easy with Keycloak? Is it a contract thing, does Auth0 have contracts with all these providers or something?