@Override
    public void deserializeClazz() throws DeserializationException {
        if (this.getClazz() != null && this.getRequestClass() == null) {
            try {
                this.setRequestClass(new String(this.getClazz(), Configs.DEFAULT_CHARSET));
            } catch (UnsupportedEncodingException e) {
                throw new DeserializationException("Unsupported charset: "
                                                   + Configs.DEFAULT_CHARSET, e);
            }
        }
    }
create request command with id and request object
@param request request object
src/main/java/com/alipay/remoting/rpc/protocol/RpcRequestCommand.java