RFR (XS) 8071770 G1 does not implement millis_since_last_gc which is needed by RMI GC

[Joseph Provino]

Please review this small change to implement millis_since_last_gc in G1.

CR: JDK-8071770 <https://bugs.openjdk.java.net/browse/JDK-8071770> G1 
does not implement millis_since_last_gc which is needed by RMI GC

Webrev:  http://cr.openjdk.java.net/~jprovino/8071770/webrev.00

Passes JPRT.

Passes test included in the CR.

thanks.

joe

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mail.openjdk.org/pipermail/hotspot-gc-dev/attachments/20160713/973e1785/attachment.htm>