http://gmm/x?action=LOCN&a=@latlon:35.0000,-105,0000&title=something&description=something

int mh = CodeModuleManager.getModuleHandle("GoogleMaps");
if (mh == 0) {
     throw new ApplicationManagerException("GoogleMaps isn't installed");
}
URLEncodedPostData uepd = new URLEncodedPostData(null, false);
uepd.append("action","LOCN");
uepd.append("a", "@latlon:"+l.getLatitude()+","+l.getLongitude());
uepd.append("title", l.getName());
uepd.append("description", l.getDescription());
String[] args = { "http://gmm/x?"+uepd.toString() };
ApplicationDescriptor ad = CodeModuleManager.getApplicationDescriptors(mh)[0];
ApplicationDescriptor ad2 = new ApplicationDescriptor(ad, args);
ApplicationManager.getApplicationManager().runApplication(ad2, true);