A program that consists solely of println("Hello, World!"); is pretty stateless and trivial, there's not much that a JIT could do with this. Somewhat anecdotal

A program that consists solely of println("Hello, World!"); is pretty stateless and trivial, there's not much that a JIT could do with this. Somewhat anecdotally, I remember hearing Rich Hickey talking about how the JVM JIT loves stateless code. I'm pretty sure the vast majority of Java code in use is deeply stateful. I don't know how much of a difference this actually makes but it seemed like a relevant data point.