As far as implementation languages go, Java is mature, extremely stable, doesn't suffer from the quirks and foibles of older languages like C++, and is slower-m

As far as implementation languages go, Java is mature, extremely stable, doesn't suffer from the quirks and foibles of older languages like C++, and is slower-moving than some of the newer languages. I know I've complained about running Java services but I think it is a great choice for writing a build system.