/**
* Returns a copy of this deque.
*
* @return a copy of this deque
*/
public ArrayDeque<E> clone() {
try {
@SuppressWarnings("unchecked")
ArrayDeque<E> result = (ArrayDeque<E>) super.clone();
result.elements = Arrays.copyOf(elements, elements.length);
return result;
} catch (CloneNotSupportedException e) {
throw new AssertionError();
}
}
