Patch: Remove exception catching from normal path in Arrays.equals.

[Mohan Embar]

Hi Andrew,

> > Let me know if you want me to submit a patch. Otherwise, I'll walk
> > away from this.
>
>Sure, go ahead.  I'm a bit nervous about the throw new RuntimeError
>part because some broken libgcj targets still don't have working
>backtrace.  Perhaps it needs to be conditional on HAVE_BACKTRACE.

I'll submit a patch for this. I thought about the conditional HAVE_BACKTRACE
too. The crux of the question is: on failure, should the helper method do
some sort of exception throwing or return a null value? You said previously
that you didn't like the null checking....

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