SeonghoonKim

public class Something {
        private Something() {
        }

        private static class LazyHolder {
                private static final Something INSTANCE = new Something();
        }

        public static Something getInstance() {
                return LazyHolder.INSTANCE;

SeonghoonKim

     <session-config>
          <cookie-config>
               <http-only>true</http-only>
          </cookie-config>
     </session-config>