Roughly to say, yes. Javassist allows you to
write an aspect in Java as AspectJ allows you
in an extended Java language.
Because of this difference, Javassist is suitable
for describing a complex crosscutting concern
and automatic aspect weaving.
yes that is precisely the whole point of bringing prof chiba on board, it is a core piece of our instrumentation and we want him right here with us.
If you are coming to JavaONE be sure to check out our talk JBossTWO where we will be talking about all this and much more