1.1 --- a/emul/compact/src/main/java/java/lang/ref/WeakReference.java Mon Feb 25 19:00:08 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,72 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 1997, 2003, Oracle and/or its affiliates. All rights reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation. Oracle designates this
1.11 - * particular file as subject to the "Classpath" exception as provided
1.12 - * by Oracle in the LICENSE file that accompanied this code.
1.13 - *
1.14 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 - * version 2 for more details (a copy is included in the LICENSE file that
1.18 - * accompanied this code).
1.19 - *
1.20 - * You should have received a copy of the GNU General Public License version
1.21 - * 2 along with this work; if not, write to the Free Software Foundation,
1.22 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 - *
1.24 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 - * or visit www.oracle.com if you need additional information or have any
1.26 - * questions.
1.27 - */
1.28 -
1.29 -package java.lang.ref;
1.30 -
1.31 -
1.32 -/**
1.33 - * Weak reference objects, which do not prevent their referents from being
1.34 - * made finalizable, finalized, and then reclaimed. Weak references are most
1.35 - * often used to implement canonicalizing mappings.
1.36 - *
1.37 - * <p> Suppose that the garbage collector determines at a certain point in time
1.38 - * that an object is <a href="package-summary.html#reachability">weakly
1.39 - * reachable</a>. At that time it will atomically clear all weak references to
1.40 - * that object and all weak references to any other weakly-reachable objects
1.41 - * from which that object is reachable through a chain of strong and soft
1.42 - * references. At the same time it will declare all of the formerly
1.43 - * weakly-reachable objects to be finalizable. At the same time or at some
1.44 - * later time it will enqueue those newly-cleared weak references that are
1.45 - * registered with reference queues.
1.46 - *
1.47 - * @author Mark Reinhold
1.48 - * @since 1.2
1.49 - */
1.50 -
1.51 -public class WeakReference<T> extends Reference<T> {
1.52 -
1.53 - /**
1.54 - * Creates a new weak reference that refers to the given object. The new
1.55 - * reference is not registered with any queue.
1.56 - *
1.57 - * @param referent object the new weak reference will refer to
1.58 - */
1.59 - public WeakReference(T referent) {
1.60 - super(referent);
1.61 - }
1.62 -
1.63 - /**
1.64 - * Creates a new weak reference that refers to the given object and is
1.65 - * registered with the given queue.
1.66 - *
1.67 - * @param referent object the new weak reference will refer to
1.68 - * @param q the queue with which the reference is to be registered,
1.69 - * or <tt>null</tt> if registration is not required
1.70 - */
1.71 - public WeakReference(T referent, ReferenceQueue<? super T> q) {
1.72 - super(referent, q);
1.73 - }
1.74 -
1.75 -}