gnu.gcj.runtime.StackTrace.findCallerClass() (was Re: Patch: Remove exception catching from normal path in Arrays.equals.)

[Mohan Embar]

>>If HAVE_BACKTRACE is not set, do not scan the stack but return null.
>>
>>If HAVE_BACKTRACE is set, we believe that backtrace() works.  So,
>>throw an exception if we don't find a caller.
>>
>>I await the firestorm...
>
>Um, I thought about this too but, you know the obviously glaring question
>so can you pre-emptively answer it?
>

P.S. If we agree that exception throwing is the right thing to do on
platforms which support it, I'd much rather do something like deliberately
dereference a null pointer in the non-HAVE_BACKTRACE case in order
to trigger a clean failure and somewhat simulate the same calling
semantics.

-- Mohan
http://www.thisiscool.com/
http://www.animalsong.org/