[7u-dev] Request for approval to backport 7192942: (coll) Inefficient calculation of power of two in HashMap

[Ivan Gerasimov]

Request for approval to backport 7192942

This is a slight improvement of a function that rounds up a number to 
the nearest power of two.

Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7192942
Webrev: http://cr.openjdk.java.net/~igerasim/7192942/1/webrev/
JDK 8 Changeset: http://hg.openjdk.java.net/jdk8/tl/jdk/rev/36f4cf8872f3
JDK 8 Review: 
http://mail.openjdk.java.net/pipermail/core-libs-dev/2013-July/019418.html

This is a verbatim export/import backport.

Thanks,
Ivan