780 B

Java Lessons

  1. Lesson #1 - How to write an annotation for your JUnit5 tests and to use from Spring environment

  2. Lesson #2 - How to log every request in Spring/SpringBoot web application


  1. Flexible Caffeine Cache Manager - How to separate different cache configurations into one application using Caffeine cache
  2. Big decimal example
  3. 'At least one group' Validator - JavaX validator to check whether only one field is specified