[7u-dev] Request for approval: 6642881: Improve performance of Class.getClassLoader()

[Kevin Walls]

Hi,

Please approve this backport into 7u of changes to speed up access to 
the classloader.  There are hotspot and JDK components.  Changes have 
been in jdk9 for nearly 2 months, these for 7u are almost identical to 
the 8u push which went in more recently.

bug:
https://bugs.openjdk.java.net/browse/JDK-6642881

webrevs for 7u:
http://cr.openjdk.java.net/~kevinw/6642881/webrev.hotspot/
http://cr.openjdk.java.net/~kevinw/6642881/webrev.jdk/

Thanks
Kevin