I don't know if this is possible, but I think its really helpful for big servers with big plugins when updating bukkit to a new versions when minecraft is updated. This idea came into me when I just updated my craftbukkit to BETA 1.23, so im having difficulties knowing which plugin is functional, so, going ingame, and typing /plf will show green plugins which is functional, yellow means a bit buggy, red means unfunctional, this will be very helpful, its hard to know which works if you have like 75+ plugins, thanks for reading.
Or you could just test them... seems like a better solution cause there is no way to test if a plugin works without going though every method and listener possible. So unless you want a plugin that will most likely crash your server due to the amount of memory it would take to process all the plugins than just test them one by one.