As a freelance developer and part-time blogger, I need to switch JDKs regularly. In the morning, I could be developing a legacy system. And in the evening, I'd b writing an article on a JDK preview feature such as text blocks. And in the night, I'm working on small PR for openHAB. In today's post, I'll share some aliases that I use to easily switch JDK's on my MacBook's.