hg: lambda/lambda/jdk: initial small set of extension methods on Collection and List which provide functional-style variants of common operations.

[mike.duigou at oracle.com]

Changeset: 27671980ed45
Author:    mduigou
Date:      2011-08-16 15:00 -0700
URL:       http://hg.openjdk.java.net/lambda/lambda/jdk/rev/27671980ed45

initial small set of extension methods on Collection and List which provide functional-style variants of common operations.

Potential source incompatibility on Collection.removeAll(null) and Collection.retainAll(null) as this is now ambiguous.

! make/java/java/FILES_java.gmk
! src/share/classes/java/util/Collection.java
+ src/share/classes/java/util/CollectionHelpers.java
! src/share/classes/java/util/List.java
+ src/share/classes/java/util/ListHelpers.java
+ test/java/util/Collection/Extensions.java
! test/java/util/Collection/MOAT.java
+ test/java/util/List/Extensions.java