hg: jdk7/hotspot-gc/hotspot: 6981746: G1: SEGV with -XX:+TraceGen0Time

[john.cuthbertson at oracle.com]

Changeset: 6eddcbe17c83
Author:    johnc
Date:      2010-09-13 10:00 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/6eddcbe17c83

6981746: G1: SEGV with -XX:+TraceGen0Time
Summary: Pass correct value for length to NumberSeq constructor. Guard dereferences of "body_summary" pointer with a NULL check.
Reviewed-by: tonyp, ysr

! src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp