如何清除ServletOutputStream的内容?

我想知道如何从ServletOutputStream(或任何其他OutputStream)中删除所有内容,以防在某个点发生异常,并且我需要OutputStream为空,以便它不包括“一半数据”

doSmthInServlet(HttpServletResponse respone, ....) {
        try {
            ServletOutPutStream outputStream = response.getOutputStream();
            //.....
            //writing to outputstream
            //exception occurred
        } catch (Exception e) {
            // and here I need to clear all the contents of outputStream
        }
    }