I'd imagine not. Assuming the JVM's semantics aren't too different from those of the Java language, you always know at compile time how many arguments a functio

I'd imagine not. Assuming the JVM's semantics aren't too different from those of the Java language, you always know at compile time how many arguments a function takes[1], so this optimization wouldn't be relevant. [1]: Java does have variadic functions, but we also know at compile time which functions have such a signature, so it probably just desugars to a normal array as the final argument.