// Notify all client cells that app has exitted.
logger.warning("App name of cell = " + serverState.getAppName());
logger.warning("Launch command of app = " + serverState.getCommand());
AppConventionalCellAppExittedMessage msg =
new AppConventionalCellAppExittedMessage(cellID, exitValue,
serverState.getAppName(),
serverState.getCommand());
channelRef.get().sendAll(null, msg);
}