How do I delete a cookie by its value?

In my.jsp page I am setting the cookie

```
String timeStamp = new SimpleDateFormat("dd:MM:yyyy_HH:mm:ss:SSS").format(Calendar.getInstance().getTime());
timeStamp = timeStamp + ":" + System.nanoTime();
String loc = "/u/poolla/workspace/FirstServlet/WebContent/WEB-INF/"+timeStamp;
Cookie cookie = new Cookie("path", loc);

```

Multiple users will have cookies with the same name but different loc values,
So, How do I get the cookie value in `servlet.java` and delete a particular loca value cookie??