Paul John questions

Paul John answers

• How do I convert a org.joda.time.LocalDateTime into java.Util.Calendar?
• Spring MVC - how to return different JSON responses based on query parameters?
• Hibernate usage with a lot of threads
• Substring strange Bounds? [duplicate]
• How to enable GZIP for RestController? [duplicate]
• Spring Security - REST API - token vs. cookie
• Spring Boot - return dates (not as timestamps)