hg: jdk8/tl/jdk: 8011200: (coll) Optimize empty HashMap and ArrayList

[mike.duigou at oracle.com]

Changeset: 2e3cc7f599ca
Author:    mduigou
Date:      2013-04-10 12:43 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/2e3cc7f599ca

8011200: (coll) Optimize empty HashMap and ArrayList
Reviewed-by: mduigou, alanb, bchristi, martin
Contributed-by: Sergey Linetskiy <sergey.linetskiy at oracle.com>, John Rose <john.r.rose at oracle.com>, Mike Duigou <mike.duigou at oracle.com>

! src/share/classes/java/util/ArrayList.java
! src/share/classes/java/util/HashMap.java
+ test/java/util/Map/BasicSerialization.java