8215759: java/math/BigInteger/ModPow.java can throw an ArithmeticException

[Brian Burkhalter]

I updated the test to use RandomFactory:

http://cr.openjdk.java.net/~bpb/8215759/webrev.01/

Thanks,

Brian

> On Dec 21, 2018, at 8:22 AM, Brian Burkhalter <brian.burkhalter at oracle.com> wrote:
> 
> Probably you are correct however about the randomness. It should be changed to use RandomFactory.