Alright, let's jump right in: 

>> THIS WEEK IN JAVA

Highlights this week: 

• A pragmatic tour through distributed cache invalidation, with concrete Spring Boot + Redis code for each pattern. Good brushup.
• A solid take on the classic make illegal states unrepresentable principle, walking through the idea across several languages. Types are still our first line of defense against bad data.
• And an interesting look at how song recognition work. I've always been curious :)