struts2 cookies
 

How can we set and get cookies in struts2.
I tried with ;Cookie a = new Cookie("name","value"); - but this throws a null pointer exception.
because of this exception I used CookieInterceptor:
CookieInterceptor LoginCookie = new CookieInterceptor();
LoginCookie.setCookiesName("type");
LoginCookie.setCookiesValue("value");
but how can I get the cookie values?