RFR 8243491: Implementation of Foreign-Memory Access API (Second Incubator)

[Chris Hegarty]

> On 13 May 2020, at 13:12, Maurizio Cimadamore <maurizio.cimadamore at oracle.com> wrote:
> 
> Another iteration which addresses the latest CSR comments (the CSR has now been approved):
> 
> * make MemorySegment::withAccessModes/hasAccessMode throw IllegalArgumentException in cases where the provided mask is invalid (this required a test tweak)
> * sprinkled a couple of references to the JLS in the package javadoc, as per CSR suggestions
> * Fixed the ParallelSum::findAny_bulk benchmarks, which were (erroneously) not testing all the elements in the segment
> 
> Webrev:
> 
> http://cr.openjdk.java.net/~mcimadamore/8243491_v4/webrev
> 
> Delta webrev:
> 
> http://cr.openjdk.java.net/~mcimadamore/8243491_v4/webrev_delta/
> 

This latest version looks good to me. Reviewed.

-Chris.