heap dump

[Hiroshi Yamauchi]

Hi,

I take a heap dump using the dumpHeap method described in

http://java.sun.com/javase/6/docs/jre/api/management/extension/com/sun/management/HotSpotDiagnosticMXBean.html

with the live parameter true and I see objects (int arrays) which have
nothing in the "References to this object" section in the jhat output.
This is on an openjdk6 b11 build.

What could it mean?

Thanks,
Hiroshi