我必须从响应中删除cookie并重定向回相同的请求url。我最近升级到tomcat 9，并开始使用legacycookieprocessor来避免无效域错误。但由于某些原因，我无法删除cookie并重定向到同一url，而后续调用在请求中没有cookie。
下面是我用来删除cookie的代码：

public static void removeCookie(String name, HttpServletRequest req, HttpServletResponse res) {
    boolean isSecure = req.isSecure();
    String domain = getDomain(req);
    String path = "/";
    String cookieName = getTicketCookiePrefix() + name;
    addCookie(req, res, cookieName, "", 0, path, domain, isSecure);
    Cookie[] cookies = req.getCookies();
    if (cookies != null) {
        Cookie[] var8 = cookies;
        int var9 = cookies.length;

        for(int var10 = 0; var10 < var9; ++var10) {
            Cookie cookie = var8[var10];
            if (cookie.getName().equals(cookieName)) {
                cookie.setValue("");
            }
        }
    }

}
public static void addCookie(HttpServletRequest request, HttpServletResponse response, String name, String value, int cookielife, String path, String domain, boolean secure) {
    Cookie ck = createCookie(name, encodeCookieValue(value));
    if (path != null) {
        ck.setPath(path);
    }

    if (domain != null) {
        ck.setDomain(domain);
    }

    ck.setMaxAge(cookielife);
    ck.setSecure(secure);
    response.addCookie(ck);
}

请让我知道，我们需要对旧版cookie处理器执行任何不同的操作来删除cookie。