Is it possible to monkey patch in Java?

Question

I don\'t want to discuss the merits of this approach, just if it is possible. I believe the answer to be \"no\". But maybe someone will surprise me!

Imagine you have

Answer 1

Just my concept idea,

It is possible that use AOP, with bytecode engineering way, to inject a aspect to the calculateHeight method.

Then, you may enable you patch by ThreadLocal or else variable.