[Integrated] [foreign-memaccess] RFR: 8240874: Add finer-grained access control for memory segments

[Maurizio Cimadamore]

Changeset: a5399004
Author:    Maurizio Cimadamore <mcimadamore at openjdk.org>
Date:      2020-03-12 17:36:15 +0000
URL:       https://git.openjdk.java.net/panama-foreign/commit/a5399004

8240874: Add finer-grained access control for memory segments

Reviewed-by: psandoz, jvernee

! src/jdk.incubator.foreign/share/classes/jdk/incubator/foreign/MemoryAddress.java
! src/jdk.incubator.foreign/share/classes/jdk/incubator/foreign/MemorySegment.java
! src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/MemorySegmentImpl.java
! src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/Utils.java
! test/jdk/java/foreign/TestByteBuffer.java
! test/jdk/java/foreign/TestMemoryAccess.java
! test/jdk/java/foreign/TestSegments.java