RemotingClientChannelHandler integer duplicate at server, and response not write

[wsky]

currently one identity AtomicInteger per handler, but only have one serverhandler, flag will confused between RemotingClientChannelHandler

public ByteBuffer pending(ClientChannel channel, RemotingCallback handler) throws ChannelException {
        int flag = this.identity.incrementAndGet();
        ByteBuffer buffer = BufferManager.getBuffer();
        buffer.putInt(flag);

        handler.flag = flag + "";
        this.callbacks.put(handler.flag, handler);// concurrent?
        this.logger.debug("sending request of rpc-call#%s", flag);

        return buffer;
    }

[wsky]

channel will be reused, so we can only have one ChannelHandler per channel

public static DynamicProxy connect(URI uri) throws ChannelException {
        ClientChannel channel = selectHandler.getClientChannel(uri);
        RemotingClientChannelHandler channelHandler = new RemotingClientChannelHandler(
                loggerFactory.create("RemotingClientChannelHandler-" + uri));
        channel.setChannelHandler(channelHandler);
        return new DynamicProxy(channel, channelHandler);
    }

channel in use will get unexpect handler!