AOP in Java patching

[SHaG]

Hey all,
Just wanted to check if any of you have considered the possibilities of
using AOP (hxxp://www.eclipse.org/aspectj/) for patching Java-based applications? Instead of all the tedious decompiling and recompiling or clumsy byte-code patching you can just replace a methiod (or any element) at runtime.
What do you thing?

[dELTA]

Sounds cool, do you have any more detailed references to this exact feature? Their website was too messy to survive my 10 second attention span...