This is actually a core concept of the Java runtime. The compilers and what not “know” about idiomatic Java. The trivial example is things like the getter/sette

This is actually a core concept of the Java runtime. The compilers and what not “know” about idiomatic Java. The trivial example is things like the getter/setter pattern so prevalent in Java. But the compiler doesn’t treat them as anything special, it’s just a method. But the runtime is well aware of this pattern, and what the resulting, straightforward byte code looks like, and can make optimization decisions from there. So where, perhaps, you may want try and write “clever” code to bend the compiler to your will, Java promotes “just write Java, no reason for the code to be tricky, let the compiler and VM implementations be tricky”.