8219014: (bf) Add absolute bulk put methods which accept a source Buffer

[Brian Burkhalter]

I have attached a specdiff to the CSR [1].

Thanks,

Brian

[1] https://bugs.openjdk.java.net/browse/JDK-8248431

> On Jul 1, 2020, at 3:33 PM, Paul Sandoz <paul.sandoz at oracle.com> wrote:
> 
> The CSR looks ok, but I think you will need to add specdiff and then you can present the JavaDoc of the ByteBuffer absolute put method deferring to the specdiff for the other cases.
> 
> The JavaDoc in the webrev looks good