[Checkers] Verdict on Compiler Thrown Exception

[Michael Ernst]

Mahmood-

> I have finally confirmed that the problem with the compiler exceptions  
> when dealing with tabs is a openjdk-javac bug.  I will send a bug  
> report to compiler-dev.
> 
> The problem was due to a check-in, dated July 15th with the summary  
> '6724071: refactor Log into a front end and back end'.

Great work!

> P.S. 'hg bisect' is really cool!

I didn't know about this feature.  It looks very useful indeed!

                    -Mike