hg: jdk/sandbox: 8221397: Support implementation-defined Map Modes

[chris.hegarty at oracle.com]

Changeset: e9c62d960d64
Author:    adinn
Date:      2019-04-09 16:21 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/e9c62d960d64

8221397: Support implementation-defined Map Modes
Summary: Allow implementation-defined extensions to FileChannel MapMode enum
Reviewed-by: alanb

! src/java.base/share/classes/java/nio/channels/FileChannel.java
! src/java.base/share/classes/sun/nio/ch/FileChannelImpl.java