hg: jdk9/dev/jdk: 8139233: add initial compact immutable collection implementations

[stuart.marks at oracle.com]

Changeset: c5467b18921b
Author:    smarks
Date:      2016-05-06 11:33 -0700
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/c5467b18921b

8139233: add initial compact immutable collection implementations
Reviewed-by: plevart, forax, dfuchs, chegar, alanb, scolebourne

+ src/java.base/share/classes/java/util/ImmutableCollections.java
! src/java.base/share/classes/java/util/List.java
! src/java.base/share/classes/java/util/Map.java
! src/java.base/share/classes/java/util/Set.java
+ test/java/util/Map/EntrySetIterator.java