Comparison of Dates (Java.Util.Date) using compareTo and Java Generic

I'm developing an application of the Facebook genre.

The problem is in sorting Publications by Date. My program uses Generics and a DoubleLinkedOrdeneredList to store those publications.

  @Override
    public void addElement(T element) {

            Comparable temp;

            temp = (Comparable) element;

            DoubleNode<T> traverse = this.getHead();
            DoubleNode<T> newnode = new DoubleNode<>(element);

            if (isEmpty()) {

                this.setHead(newnode);
                this.setTail(newnode);
            } else if (temp.compareTo(this.getTail().getElement()) >= 0) {

                this.getTail().setNext(newnode);
                newnode.setPrevious(this.getTail());
                newnode.setNext(null);

                this.setTail(newnode);
            } else if (temp.compareTo(this.getHead().getElement()) <= 0) {
                this.getHead().setPrevious(this.getTail());
                newnode.setNext(this.getHead());
                newnode.setPrevious(null);
                this.setHead(newnode);
            } else {
                while ((temp.compareTo(traverse.getElement()) > 0)) {
                    traverse = traverse.getNext();
                }

                newnode.setNext(traverse);
                newnode.setPrevious(traverse.getPrevious());
                traverse.getPrevious().setNext(newnode);
                traverse.setPrevious(newnode);
            }

        }

My question is how we can pass an object of type Message into the addElement method and then using an attribute of type Date (java.util) compare the dates and sort.