@Override
    public ChannelHandler addListener(final ChannelHandlerListener listener) {
        future.addListener(new IoFutureListener() {
            @Override
            public void operationComplete(Future future) throws Exception {
                listener.operationComplete(future);
            }
        });
        return this;
    }
@author Robert HG (254963746@qq.com) on 2/8/16.
lts-core/src/main/java/com/github/ltsopensource/remoting/lts/LtsChannelHandler.java