hg: panama/dev: 8208272: Scope.allocateArray needs to be more friendly to null or zero-length array

[henry.jen at oracle.com]

Changeset: eff256f43bdc
Author:    henryjen
Date:      2018-07-26 09:22 -0700
URL:       http://hg.openjdk.java.net/panama/dev/rev/eff256f43bdc

8208272: Scope.allocateArray needs to be more friendly to null or zero-length array
Reviewed-by: sundar

! src/java.base/share/classes/java/foreign/Scope.java
! src/java.base/share/classes/java/foreign/memory/Pointer.java
! src/java.base/share/classes/jdk/internal/foreign/ScopeImpl.java
+ test/jdk/java/foreign/ScopeTest.java