RFR: 8003471 - Add Add instrumentation facilities for Throwables

[Nils Loodin]

>>
>> Webrev: http://cr.openjdk.java.net/~nloodin/exception-tracing/webrev.01/
>> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8003322
> Nils - you can explain why the byte code instrumentation can't be used
> here?

No real reason it couldn't, I just hadn't implemented it that way for 
simplicity's sake.

>
> -Alan.

/Nisse