@SuppressWarnings("unused")
    public void setRedirectUrl(String redirectUrl) {
        this.redirectUrl = redirectUrl;
    }
Sets the URL to where the user will be redirected after logout.  Default is the web application's context
root, i.e. {@code "/"}

@param redirectUrl the url to where the user will be redirected after logout
web/src/main/java/org/apache/shiro/web/filter/authc/LogoutFilter.java