@Override public Comparator<? super V> valueComparator() { return decorated().valueComparator(); }
@Override public SortedMap<K, V> subMap(final K fromKey, final K toKey) { return decorated().subMap(fromKey, toKey); }
@Override public Comparator<? super K> comparator() { return decorated().comparator(); }
@Override public SortedMap<K, V> headMap(final K toKey) { return decorated().headMap(toKey); }
@Override public SortedBidiMap<V, K> inverseBidiMap() { return decorated().inverseBidiMap(); }
@Override public SortedMap<K, V> tailMap(final K fromKey) { return decorated().tailMap(fromKey); }