AppContext.getManager(CellResourceManagerInternal.class);
crmi.updateCellResource(cellID, owners, permissions);
// update the cell cache as well
UniverseManager um = AppContext.getManager(UniverseManager.class);
um.revalidateCell(cellRef.get());
// send a message to clients notifying them of the change
if (channelRef != null) {
channelRef.get().sendAll(null, new PermissionsChangedMessage());
}