The point is to get the reader ahead of the curve! It's not really Java they're suggesting you learn: it's concurrency. Once you learn concurrency in one langua

The point is to get the reader ahead of the curve! It's not really Java they're suggesting you learn: it's concurrency. Once you learn concurrency in one language, much of your understanding carries forward to other languages. Intel has told us multicore is the future. They're trying to get you ready for it. Less certain is whether Java or Clojure will be the new cool thing.