RFR 8157308: DRBG serialization fix

[Wang Weijun]

> On Jun 3, 2016, at 12:09 AM, Sean Mullan <sean.mullan at oracle.com> wrote:
> 
> For the test/sun/security/provider/SecureRandom/AbstractDrbgSpec.java that was removed, are you still getting adequate test coverage somewhere else on the SecureRandom API tests this test was checking?

Not as much as before. I will find a way to add the test back.

Thanks
Max