Java bytecode hacking for fun and profit (cory.li)

I remember discovering that referencing things outside of the local scope cost an extra bytecode back when I did battlecode. Also calling a method cost an extra one too, so ideally you'd just copy paste your methods all over the place!

Surprisingly, Battlecode was much more representative of doing a startup than any hackathon thing I've been to, even though you did silly bytecode optimizations.