Collection.iterator consistency

Question

According to the javadoc, when getting an iterator:
There are no guarantees concerning the order in which the elements are returned
However, I was wondering whether the iterator returned by a Collection always iterates in the same order (provided no changes are made to the Collection).
In other words, if the sixth Object I add to a Collection is the third one found during iteration, will it always be the third?
Or in code
Collection coll = getCollection();
Object third = null;
Object nextThird = null;
Object obj = null;
Iterator firstIter = coll.iterator();
for( int i = 0; i < 3; i++ )
obj = firstIter.next();
third = obj;
Iterator secondIter = coll.iterator();
for( int i = 0; i < 3; i++ )
obj = secondIter.next();
nextThird = obj;
boolean itWorks = (third == nextThirs);
Will itWorks always be true?

Answer 1

Unless I am very mistaken, I think it depends on the Collection implementation you are using. For instance, anything that also implements List will necessarily return the items in the same order.
So yeah, it's probably better not to depend on it, unless you know specifically the type of collection does indeed preserve an order via the Iterator.