It's necessary to use spring dependencies, you can get in: https://repo.spring.io/ui/native/libs-release/org/springframework/spring/5.3.9/
It's necessary to get javax.annotation-api-1.3.2.jar from https://search.maven.org/remotecontent?filepath=javax/annotation/javax.annotation-api/1.3.2/javax.annotation-api-1.3.2.jar
It's also necessary to get Hibernate validator from https://hibernate.org/validator/releases/6.2/
Download spring-5.3.9-dist.zip
And Just add to you project, nothing fancy yet