The following incident was observed twice on Solaris 10 x86 after having
updated to Java SE 6 Update 31:
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0xfffffd7ffb946d0b, pid=21954, tid=19
#
# JRE version: 6.0_31-b04
# Java VM: Java HotSpot(TM) 64-Bit Server VM (20.6-b01 mixed mode solaris-amd64 compressed oops)
# Problematic frame:
# J a.b.b.d.e.f.WallClockInterval.toIntervalGroup(Ljava/util/Date;Ljava/util/Date;Ljava/util/TimeZone;)La/b/c/d/util/coll/IntervalGroup;