Good article. Writing immutable software is hard, when the language doesn't provide constructs for it. It will require some discipline. There are some good fra

Good article. Writing immutable software is hard, when the language doesn't provide constructs for it. It will require some discipline. There are some good frameworks/tools for the JVM for Java programmers for this (the whole AKKA package is a good place to start). I would highly recommend Venkat Subramaniam's book for Java programmers: "..Concurrency on JVM.."- http://pragprog.com/book/vspcon/programming-concurrency-on-the-jvm http://pragprog.com/book/vspcon/programming-concurrency-on-t...