hg: panama/dev: More tolerant to zero-length data/array

[henry.jen at oracle.com]

Changeset: 0b1e956264eb
Author:    henryjen
Date:      2018-05-29 07:38 -0700
URL:       http://hg.openjdk.java.net/panama/dev/rev/0b1e956264eb

More tolerant to zero-length data/array

! src/java.base/share/classes/java/nicl/Scope.java
! src/java.base/share/classes/java/nicl/types/Pointer.java
! src/java.base/share/classes/jdk/internal/nicl/NativeScope.java
! src/java.base/share/classes/jdk/internal/nicl/Util.java
! src/java.base/share/classes/jdk/internal/nicl/types/BoundedMemoryRegion.java
+ test/jdk/java/nicl/TestScope.java
+ test/jdk/java/nicl/types/TestPointer.java