Well, to quote TFA: > Essentially, we use a contrived form of Java that avoids all the Java constructs that make things go slow. We only use the constructs tha

Well, to quote TFA: > Essentially, we use a contrived form of Java that avoids all the Java constructs that make things go slow. We only use the constructs that are fast and efficient, and we avoid all the garbage > The only problem with low latency Java is that most experience Java programmers struggle with the new paradigm. "A lot of people who program in Java are used to working in an environment where latency isn't a criteria," says Lawrey. So, the best Java developers would be former C/C++ developers. That's hardly a ringing endorsement for the language. Look at LMAX's Disruptor, for example. It's hardly Java since it gets its performance from use of sun.misc.UnSafe. Java does give you quite good IDEs though. That's about it.