hg: jdk/jdk: 8177290: add copy factory methods for unmodifiable List, Set, Map; ...

[stuart.marks at oracle.com]

Changeset: 6ee80cd217e0
Author:    smarks
Date:      2017-12-04 11:50 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/6ee80cd217e0

8177290: add copy factory methods for unmodifiable List, Set, Map
8184690: add Collectors for collecting into unmodifiable List, Set, and Map
Reviewed-by: alanb, briangoetz, dholmes, jrose, rriggs, scolebourne

! src/java.base/share/classes/java/util/Collection.java
! src/java.base/share/classes/java/util/Collections.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
! src/java.base/share/classes/java/util/stream/Collectors.java
! test/jdk/java/util/Collection/MOAT.java
! test/jdk/java/util/Collection/SetFactories.java
! test/jdk/java/util/List/ListFactories.java
! test/jdk/java/util/Map/MapFactories.java