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We were an all-Java shop and we were considering how to make our application a SAAS cloud application. Our senior engineers read this book. They all agreed that it was very educational, but the conclusion was that Java concurrency in practice has too many footguns, and so we ended up adopting Clojure.

I think modern Java has better support for it, but if you've got mutable state spread throughout your application you're going to have a hard time no matter what.




> senior engineers read this book

How does one become a senior engineer if you don't understand concurrency?

Mutable state is most easily solved by having cpoies of everything, but then that's a tradeoff between performance and infrastructure/resource costs, but I guess that if you're in an all-Java shop that isn't much of an issue.


Reading a book on the basics doesn't mean you don't have a grasp of them. I'd argue that refreshing your knowledge on things is a mark of a good engineer, regardless of seniority.


Rich Hickey is supposed to have said that he created Clojure because he was tired of telling people to read that book.

Best I can find as a source for now is https://www.youtube.com/watch?v=2y5Pv4yN0b0 -- I thought there was a link somewhere to Hickey himself saying this, but can't find it.




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