The latest published snapshots do not have the sources or javadoc jar present. This appears to be the case for [`6.0.0-SNAPSHOT`](https://repo.spring.io/ui/native/snapshot/org/springframework/security/spring-security-core/6.0.0-SNAPSHOT), [`5.6.1-SNAPSHOT`](https://repo.spring.io/ui/native/snapshot/org/springframework/security/spring-security-core/5.6.1-SNAPSHOT) and [`5.7.0-SNAPSHOT`](https://repo.spring.io/ui/native/snapshot/org/springframework/security/spring-security-core/5.7.0-SNAPSHOT).