I've been doing some mucking around with the AOP part of the Spring Framework. It's quite nice
– fairly similar to Nanning, as
has been noted elsewhere.

Inspired by Crazybob's jAdvise SEQUENCE
tool, I've created a similar utility for Spring based applications
(actually, I think it would go close to working with anything that
implements the AOPAlliance
interfaces but I haven't tested that, yet). Currently it produces a Gantt chart
of the method timings, and a sequence diagram of their execution.