Yeah you can't do that, and I don't necessarily agree with that design decision. But for the sake of the comparison it's worth saying that these "simple" compile-to-binary languages simply don't let you set those parameters at all - it's ridiculous to argue that Go (say) is better than Java because something that's impossible in Go requires fiddling with parameters in Java.
I didn't actually say Go is better than Java. I said that binaries were something I realized I missed because of those languages. That is, it's something I appreciate about Go and Rust.
But what's the advantage of a binary over a (shaded) jar? "java -jar myapp.jar" is a little more typing than "myapp", but only a little (and you can avoid that by prepending a launch script if you want); having the JVM installed on all your servers is a one-time cost.
See my above comment about GC and other runtime options. I always need a script to specify all the options to the JVM. It is never just as easy as a single jar with no options. That makes it better, no doubt, but it still sucks.
