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- void linkBefore(E e, Node<E> succ) {
- // assert succ != null;
- final Node<E> pred = succ.prev;
- final Node<E> newNode = new Node<>(pred, e, succ);
- succ.prev = newNode;
- if (pred == null)
- first = newNode;
- else
- pred.next = newNode;
- size++;
- modCount++;
- }
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