hg: jdk8/tl/jdk: 7173919: Minor optimization of hashing methods

[mike.duigou at oracle.com]

Changeset: 505455116320
Author:    mduigou
Date:      2012-06-13 16:48 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/505455116320

7173919: Minor optimization of hashing methods
Summary: several minor optimizations to hashing methods used by hash map classes
Reviewed-by: dholmes

! src/share/classes/java/util/HashMap.java
! src/share/classes/java/util/Hashtable.java
! src/share/classes/java/util/WeakHashMap.java
! src/share/classes/java/util/concurrent/ConcurrentHashMap.java