RFR: 8007806: Need a Throwables performance counter

[Nils Loodin]

It would be interesting to know the number of thrown throwables in the
JVM, to be able to do some high level application diagnostics /
statistics. A good way to put this number would be a performance
counter, since it is accessible both from Java and from the VM.

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8007806
http://cr.openjdk.java.net/~nloodin/8007806/webrev.00/

Regards,
Nils Loodin