RFR: 8007806: Need a Throwables performance counter

[Jason Mehrens]

> Just to be clear, what I was trying to say that this review is just to
> add the counter, and the discussion on how and when to access it is
> something that I'd much rather have in context of a review of that code...

Then the counter name should not bind you to how it is counting. +1 for 'sun.throwables' as suggested by Peter.

Jason