0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * This file is available under and governed by the GNU General Public 0N/A * License version 2 only, as published by the Free Software Foundation. 0N/A * However, the following notice accompanied the original version of this 0N/A * Written by Doug Lea with assistance from members of JCP JSR-166 0N/A * Expert Group and released to the public domain, as explained at 0N/A * A {@link ConcurrentMap} supporting {@link NavigableMap} operations, 0N/A * and recursively so for its navigable sub-maps. 0N/A * <p>This interface is a member of the 0N/A * Java Collections Framework</a>. 0N/A * @param <K> the type of keys maintained by this map 0N/A * @param <V> the type of mapped values 0N/A * @throws ClassCastException {@inheritDoc} 0N/A * @throws NullPointerException {@inheritDoc} 0N/A * @throws IllegalArgumentException {@inheritDoc} 0N/A * @throws ClassCastException {@inheritDoc} 0N/A * @throws NullPointerException {@inheritDoc} 0N/A * @throws IllegalArgumentException {@inheritDoc} 0N/A * @throws ClassCastException {@inheritDoc} 0N/A * @throws NullPointerException {@inheritDoc} 0N/A * @throws IllegalArgumentException {@inheritDoc} 0N/A * @throws ClassCastException {@inheritDoc} 0N/A * @throws NullPointerException {@inheritDoc} 0N/A * @throws IllegalArgumentException {@inheritDoc} 0N/A * @throws ClassCastException {@inheritDoc} 0N/A * @throws NullPointerException {@inheritDoc} 0N/A * @throws IllegalArgumentException {@inheritDoc} 0N/A * @throws ClassCastException {@inheritDoc} 0N/A * @throws NullPointerException {@inheritDoc} 0N/A * @throws IllegalArgumentException {@inheritDoc} 0N/A * Returns a reverse order view of the mappings contained in this map. 0N/A * The descending map is backed by this map, so changes to the map are 0N/A * reflected in the descending map, and vice-versa. 0N/A * <p>The returned map has an ordering equivalent to 0N/A * <tt>{@link Collections#reverseOrder(Comparator) Collections.reverseOrder}(comparator())</tt>. 0N/A * The expression {@code m.descendingMap().descendingMap()} returns a 0N/A * view of {@code m} essentially equivalent to {@code m}. 0N/A * @return a reverse order view of this map 0N/A * Returns a {@link NavigableSet} view of the keys contained in this map. 0N/A * The set's iterator returns the keys in ascending order. 0N/A * The set is backed by the map, so changes to the map are 0N/A * reflected in the set, and vice-versa. The set supports element 0N/A * removal, which removes the corresponding mapping from the map, 0N/A * via the {@code Iterator.remove}, {@code Set.remove}, 0N/A * {@code removeAll}, {@code retainAll}, and {@code clear} 0N/A * operations. It does not support the {@code add} or {@code addAll} 0N/A * <p>The view's {@code iterator} is a "weakly consistent" iterator 0N/A * that will never throw {@link ConcurrentModificationException}, 0N/A * and guarantees to traverse elements as they existed upon 0N/A * construction of the iterator, and may (but is not guaranteed to) 0N/A * reflect any modifications subsequent to construction. 0N/A * @return a navigable set view of the keys in this map 0N/A * Returns a {@link NavigableSet} view of the keys contained in this map. 0N/A * The set's iterator returns the keys in ascending order. 0N/A * The set is backed by the map, so changes to the map are 0N/A * reflected in the set, and vice-versa. The set supports element 0N/A * removal, which removes the corresponding mapping from the map, 0N/A * via the {@code Iterator.remove}, {@code Set.remove}, 0N/A * {@code removeAll}, {@code retainAll}, and {@code clear} 0N/A * operations. It does not support the {@code add} or {@code addAll} 0N/A * <p>The view's {@code iterator} is a "weakly consistent" iterator 0N/A * that will never throw {@link ConcurrentModificationException}, 0N/A * and guarantees to traverse elements as they existed upon 0N/A * construction of the iterator, and may (but is not guaranteed to) 0N/A * reflect any modifications subsequent to construction. 0N/A * <p>This method is equivalent to method {@code navigableKeySet}. 0N/A * @return a navigable set view of the keys in this map 0N/A * Returns a reverse order {@link NavigableSet} view of the keys contained in this map. 0N/A * The set's iterator returns the keys in descending order. 0N/A * The set is backed by the map, so changes to the map are 0N/A * reflected in the set, and vice-versa. The set supports element 0N/A * removal, which removes the corresponding mapping from the map, 0N/A * via the {@code Iterator.remove}, {@code Set.remove}, 0N/A * {@code removeAll}, {@code retainAll}, and {@code clear} 0N/A * operations. It does not support the {@code add} or {@code addAll} 0N/A * <p>The view's {@code iterator} is a "weakly consistent" iterator 0N/A * that will never throw {@link ConcurrentModificationException}, 0N/A * and guarantees to traverse elements as they existed upon 0N/A * construction of the iterator, and may (but is not guaranteed to) 0N/A * reflect any modifications subsequent to construction. 0N/A * @return a reverse order navigable set view of the keys in this map