Hi Cay,
Just wondering if the changes for Java 9 has enough to fill a book? SE 8 was a pretty big release with lots of stuff in it, apart from the modular changes and project coin is there much else in SE 9?
Yes, absolutely, this isn't a "really impatient" book. That would be super thin. With Java going to 6 month releases, there may never again be a "really impatient" book.