2362N/A * Copyright (c) 1997, 2003, Oracle and/or its affiliates. All rights reserved. 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 * Weak reference objects, which do not prevent their referents from being 0N/A * made finalizable, finalized, and then reclaimed. Weak references are most 0N/A * often used to implement canonicalizing mappings. 0N/A * <p> Suppose that the garbage collector determines at a certain point in time 0N/A * reachable</a>. At that time it will atomically clear all weak references to 0N/A * that object and all weak references to any other weakly-reachable objects 0N/A * from which that object is reachable through a chain of strong and soft 0N/A * references. At the same time it will declare all of the formerly 0N/A * weakly-reachable objects to be finalizable. At the same time or at some 0N/A * later time it will enqueue those newly-cleared weak references that are 0N/A * registered with reference queues. 0N/A * @author Mark Reinhold 0N/A * Creates a new weak reference that refers to the given object. The new 0N/A * reference is not registered with any queue. 0N/A * @param referent object the new weak reference will refer to 0N/A * Creates a new weak reference that refers to the given object and is 0N/A * registered with the given queue. 0N/A * @param referent object the new weak reference will refer to 0N/A * @param q the queue with which the reference is to be registered, 0N/A * or <tt>null</tt> if registration is not required