GraalVM has a lot of limitations, some popular lib don't work with it. From what I remember anything using reflection is painful to use.

And going the other direction, if you want your C++ binaries to benefit from statistics about how to optimize the steady-state behavior of a long-running process, the analogous technique is profile-guided optimization (PGO).

GraalVM is terrible. Eats gigabytes of memory to compile super simple application. Spends minutes doing that. If you need compiled native app, just use Golang.

I used to be really excited about GraalVM but this, together with limitations in what Java code can run (reflection must be whitelisted - i.e. pain) made me run away from it. I do use Go, but my favourite substitute for Java is actually Dart. It can run as a script, compile to a binary or to a multiplatform "fast" format (a bit like a jar), and performance wise it's par on par with Java! It's faster on some things, a bit slower on other... but in general, compiling to exe makes it extremely fast to start, like Go. I think it even shares some Go binary creation tooling since both are made by Google and I remember when they were implementing the native compiler, they mentioned something about that.

But you only need to do that before a release. You can just develop with the normal JVM with ultra fast incremental builds and hot reload.