samples/javaconfig/custom-cookie/src/main/java/sample/Config.java
@Bean
	public CookieSerializer cookieSerializer() {
		DefaultCookieSerializer serializer = new DefaultCookieSerializer();
		serializer.setCookieName("JSESSIONID"); // <1>
		serializer.setCookiePath("/"); // <2>
		serializer.setDomainNamePattern("^.+?\\.(\\w+\\.[a-z]+)$"); // <3>
		return serializer;
	}
@Bean
	public CookieSerializer cookieSerializer() {
		DefaultCookieSerializer serializer = new DefaultCookieSerializer();
		serializer.setCookieName("JSESSIONID"); // <1>
		serializer.setCookiePath("/"); // <2>
		serializer.setDomainNamePattern("^.+?\\.(\\w+\\.[a-z]+)$"); // <3>
		return serializer;
	}
tag::cookie-serializer[]