Fix warnings occurring with gcc 4.3

[Christian Thalinger]

On Tue, 2009-02-03 at 22:31 +0000, Andrew John Hughes wrote:
> Good. We obviously don't build directly from the forest and it isn't
> clear that such changes are in that tree; the commit list just shows
> the branch being tagged.

The bug Xiaobin is talking about is 6781583.  The pushed changeset is:

http://hg.openjdk.java.net/jdk7/hotspot-rt/hotspot/rev/2328d1d3f8cf

and it has already been promoted to the hotspot forest.

-- Christian