The crawl runs on a super-heterogenous network of computers from around the world. The JVM sandbox is the only thing we know. Java is the only language that h

The crawl runs on a super-heterogenous network of computers from around the world. The JVM sandbox is the only thing we know. Java is the only language that has something like this. Yes, Java isn't as sexy anymore. But running your code on 50,000 computers sounds sexier to me than a REST API.