Description of problem:

jconsole crashes when used on a local gnome display, remote displays via 
X11 are not affected.

Version-Release number of selected component (if applicable):

[schonef@localhost ~]$ jconsole -version
JConsole version "1.7.0-kojibuilder_27_sep_2007_14_56-b00"
IcedTea Runtime Environment (build 1.7.0-kojibuilder_27_sep_2007_14_56-b00)
IcedTea Client VM (build 11.0-b05, mixed mode)



How reproducible:

Start jconsole, select a JVM (I selected a gcjwebplugin instance) 
and click a while on various controls. On the console the following
text is emitted: 

[schonef@localhost ~]$ jconsole 

(<unknown>:11755): Gtk-WARNING **: Attempting to add a widget with type GtkButto
n to a GtkComboBoxEntry (need an instance of GtkEntry or of a subclass)

(<unknown>:11755): Gtk-CRITICAL **: gtk_widget_realize: assertion `GTK_WIDGET_AN
CHORED (widget) || GTK_IS_INVISIBLE (widget)' failed

(<unknown>:11755): Gtk-CRITICAL **: gtk_paint_box: assertion `style->depth == gd
k_drawable_get_depth (window)' failed

(<unknown>:11755): Gtk-CRITICAL **: gtk_paint_box: assertion `style->depth == gd
k_drawable_get_depth (window)' failed

(<unknown>:11755): Gtk-CRITICAL **: gtk_paint_box: assertion `style->depth == gd
k_drawable_get_depth (window)' failed

(<unknown>:11755): Gtk-CRITICAL **: gtk_paint_box: assertion `style->depth == gd
k_drawable_get_depth (window)' failed
4e1a89cc-c00b-28d3-170982fe-779a5b2a is dumped