jvm crash on ubuntu 8.10 with javaxpcom code

Hi all

i'm trying to run some examples of the javaxpcom interfaces , in order 
to do that , i've download the xulrunner-sdk tar and execute the 
following code :


public class Main {

    public static class LocationProvider implements IAppFileLocProvider {

        File grePath;

        public LocationProvider(File grePath) {
            this.grePath = grePath;
        }

        public File getFile(String aProp, boolean[] aPersistent) {
            System.out.println(aProp);
            System.out.println(aPersistent);

            File file = null;
            if (aProp.equals("GreD") || aProp.equals("GreComsD")) {
                file = grePath;
                if (aProp.equals("GreComsD")) {
                    file = new File(file, "components");
                }
            } else if (aProp.equals("MozBinD") || aProp.equals("CurProcD")
                    || aProp.equals("ComsD") || aProp.equals("ProfD")) {
                file = grePath;
                if (aProp.equals("ComsD")) {
                    file = new File(file, "components");
                }
            }
            return file;
        }

        public File[] getFiles(String aProp) {
            System.out.println(aProp);

            File[] files = null;
            if (aProp.equals("APluginsDL")) {
                files = new File[1];
                files[0] = new File(grePath, "plugins");
            }
            return files;
        }
    }

   public static void main(String[] args) {

        System.setProperty("GRE_HOME", 
"/home/teckla/core/xulrunner-sdk/bin");
        System.setProperty("java.library.path", 
"/home/teckla/core/xulrunner-sdk/bin");

        Mozilla mozilla = Mozilla.getInstance();
        GREVersionRange[] range = new GREVersionRange[1];
        range[0] = new GREVersionRange("1.8.0", true, "1.9", false);
        // work with trunk nightly version 1.9a1
        try {
            File grePath = Mozilla.getGREPathWithProperties(range, null);
            System.out.println(grePath.toString());
            mozilla.initialize(grePath);
            LocationProvider locProvider = new LocationProvider(grePath);
            mozilla.initEmbedding(grePath, grePath, locProvider);

            // Note, on linux, gtk has to be already initialized for 
this code to work
             Mozilla moz = Mozilla.getInstance();
             // Now we need to start an XUL application, so we get an 
instance of the XPCOM service manager
             nsIServiceManager serviceManager = moz.getServiceManager();
             // Now we need to get the 
@mozilla.org/toolkit/app-startup;1 service:
             nsIAppStartup appStartup = 
(nsIAppStartup)serviceManager.getServiceByContractID("@mozilla.org/toolkit/app-startup;1", 
nsIAppStartup.NS_IAPPSTARTUP_IID);
             // Get the nsIWindowWatcher interface to the above
             nsIWindowCreator windowCreator = 
(nsIWindowCreator)appStartup.queryInterface(nsIWindowCreator.NS_IWINDOWCREATOR_IID);
             // Get the window watcher service
             nsIWindowWatcher windowWatcher = 
(nsIWindowWatcher)serviceManager.getServiceByContractID("@mozilla.org/embedcomp/window-watcher;1", 
nsIWindowWatcher.NS_IWINDOWWATCHER_IID);
             // Set the window creator (from step 6)
             windowWatcher.setWindowCreator(windowCreator);
             // Create the root XUL window:
             nsIDOMWindow win = windowWatcher.openWindow(null, 
"chrome://your-app/content/window.xul", "mywindow", 
"chrome,resizable,centerscreen", null);
             // Set this as the active window
             windowWatcher.setActiveWindow(win);
             // Hand over the application to xpcom/xul, this will block:
             appStartup.run();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (XPCOMException e) {
            e.printStackTrace();
        }

    }
}



.... but by some reason , the jvm crash on the line :

nsIDOMWindow win = windowWatcher.openWindow(null, 
"chrome://your-app/content/window.xul", "mywindow", 
"chrome,resizable,centerscreen", null);

    giving the following trace :





(process:22320): GLib-GObject-CRITICAL **: 
/build/buildd/glib2.0-2.18.2/gobject/gtype.c:2458: initialization 
assertion failed, use IA__g_type_init() prior to this function

(process:22320): GLib-CRITICAL **: g_once_init_leave: assertion 
`initialization_value != 0' failed

(process:22320): Gdk-CRITICAL **: gdk_screen_get_rgb_visual: assertion 
`GDK_IS_SCREEN (screen)' failed
#
# An unexpected error has been detected by Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x90209a6c, pid=22320, tid=3084917648
#
# Java VM: Java HotSpot(TM) Server VM (10.0-b23 mixed mode linux-x86)
# Problematic frame:
# C  [libxul.so+0x84aa6c]
#
# An error report file with more information is saved as:
# /home/teckla/Escritorio/lobobrowser 
tests/testxulrunner/hs_err_pid22320.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
Java Result: 134



           Can anyone help me with this issue?


Regards , Gonzalo Tirapegui Medina