[7u-dev] Request for approval for CR 8039042 - G1: Phantom zeros in cardtable

[Per Liden]

Hi,

Requesting push approval for JDK-8039042. This fix has already gone into 
both 9 and 8u20 and applies cleanly to 7u-dev.

Bug: https://bugs.openjdk.java.net/browse/JDK-8039042

Webrev: http://cr.openjdk.java.net/~pliden/8039042/webrev.0/

Review: 
http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2014-May/010069.html

Thanks!
/Per