Obtaining a Method object is, I think, pretty slow. But calling through one is fast - I'm not sure what happens exactly, but after some number of calls, some so

Obtaining a Method object is, I think, pretty slow. But calling through one is fast - I'm not sure what happens exactly, but after some number of calls, some sort of JITting or some such happens and a call via a Method object is as fast as as through a handwritten equivalent (which does the same unpacking of arguments etc).