Design a fine-grained optimistic locking algorithm that uses a version number to avoid traversing the list while holding any lock if the list does not change during the first traversal of the list....

Design a fine-grained optimistic locking algorithm that uses a version number to avoid traversing the list while holding any lock if the list does not change during the first traversal of the list. What are the advantages and disadvantages of this list compared with the coarse-grained list from the previous exercise?