RFR: 8221397 Support implementation-defined Map Modes

[Alan Bateman]

On 09/04/2019 17:02, Andrew Dinn wrote:
> In response to Alan's suggestion (included below) I have reverted the
> constructor for MapMode to private and will use behind the scenes access
> to construct the extended enum values.
>
> This change removes the need to modify the test in MapTest.java (no new
> API to exercise).
>
> It still requires javadoc changes in FileChannel.map and implementation
> changes in FileChannelImpl.java. Reveiews for the udpated webrev would
> be welcome. I'll post a separate request for review of the CSR changes.
>
> JIRA:       https://bugs.openjdk.java.net/browse/JDK-8221397
> new webrev: http://cr.openjdk.java.net/~adinn/8221397/webrev.03
>
I think this looks fine. I've added myself as Reviewer to the CSR too.

-Alan