Method descendingSet

src/main/java/org/mapdb/BTreeMapJava.java:519–522

()

            return tailSet(fromElement, true);
        }
        @Override
        public NavigableSet<E> descendingSet() {
            return new KeySet((ConcurrentNavigableMap2)m.descendingMap(),hasValues);
        }

        @Override
        public boolean add(E k) {