Method floorKey

vm/JavaAPI/src/java/util/TreeMap.java:5381–5384

{@inheritDoc} @see java.util.NavigableMap#floorKey(Object) @since 1.6

(K key)

     * @since 1.6
     */
    public K floorKey(K key) {
        Map.Entry<K, V> entry = floorEntry(key);
        return (null == entry) ? null : entry.getKey();
    }

    final AbstractMap.SimpleImmutableEntry<K, V> newImmutableEntry(
            TreeMap.Entry<K, V> entry) {