@Override
 public void restoreChannel(ConduitState state) {
   super.restoreChannel(state);
   channel.getSinkChannel().getConduit().setWriteReadyHandler(writeReadyHandler);
 }
 @Override
 public void clearChannel() {
   super.clearChannel();
   channel.getSinkChannel().getConduit().setWriteReadyHandler(writeReadyHandler);
 }