2362N/A * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved. 632N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 632N/A * This code is free software; you can redistribute it and/or modify it 632N/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 632N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 632N/A * This code is distributed in the hope that it will be useful, but WITHOUT 632N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 632N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 632N/A * version 2 for more details (a copy is included in the LICENSE file that 632N/A * accompanied this code). 632N/A * You should have received a copy of the GNU General Public License version 632N/A * 2 along with this work; if not, write to the Free Software Foundation, 632N/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 632N/A * A hashtable-based cache with weak keys and weak values. 632N/A * An entry in the map will be automatically removed 632N/A * when its key is no longer in the ordinary use. 632N/A * A value will be automatically removed as well 632N/A * when it is no longer in the ordinary use. 632N/A * @author Sergey A. Malenkov 632N/A * Returns a value to which the specified {@code key} is mapped, 632N/A * or {@code null} if this map contains no mapping for the {@code key}. 632N/A * @param key the key whose associated value is returned 632N/A * @return a value to which the specified {@code key} is mapped 632N/A * Associates the specified {@code value} with the specified {@code key}. 632N/A * Removes the mapping for the specified {@code key} from this cache 632N/A * if it is present and the specified {@code value} is {@code null}. 632N/A * If the cache previously contained a mapping for the {@code key}, 632N/A * the old value is replaced by the specified {@code value}. 632N/A * @param key the key with which the specified value is associated 632N/A * @param value the value to be associated with the specified key 1987N/A * Removes all of the mappings from this cache.