@Deprecated
    protected CommandFactory getCommandFactory() {
        LOGGER
            .warn("The method getCommandFactory() is deprecated. Please use getCommandFactory(ProtocolCode/Connection) instead.");
        return commandFactory;
    }
Create invoke future with {@link InvokeContext}.
@param conn
@param request
@param invokeContext
@param invokeCallback
@return
src/main/java/com/alipay/remoting/BaseRemoting.java