I just announced the new "Learn Spring" course.
The "REST API with Spring" tutorial Series
The "Spring Security" tutorial Series
The “Persistence with Spring” Tutorial
The “JSON with Jackson” Tutorial Series
The “HttpClient” Tutorial Series
The “Java – Back to Basics” Tutorial Series
The “Java Collections” Tutorial Series
The “Java Concurrency” Tutorial Series
The “Java Streams” Tutorial Series
The “Learn Spring Boot” Tutorial Series
The “Spring Cloud” Tutorial Series
The “Mockito” Tutorial Series