// Send a ADD component message on the cell channel. Wait for a
// response. If OK, then update the GUI with the new component.
// Otherwise, display an error dialog box.
CellServerComponentMessage message =
CellServerComponentMessage.newAddMessage(cellID, state);
ResponseMessage response = selectedCell.sendCellMessageAndWait(message);
if (response == null) {
// log and error and post a dialog box
LOGGER.warning("Received a null reply from cell with id " +
selectedCell.getCellID() + " with name " +
selectedCell.getName() + " adding component.");