Mike, I know the description is pulled from the previous constructor, but both sound a bit awkward. Both can probably benefit from an improvement.
Currently: "Creates a {@code PriorityQueue} with the default initial capacity that orders its elements according to the specified comparator." Depending on one's spoken emphasis, it can sound as if the capacity is the one causing the elements to be ordered. Suggestion: "Creates a {@code PriorityQueue} with the default initial capacity and whose elements are ordered according to the specified comparator." Cheers, Paul