diff -r 5198affdb915 -r d382dacfd73f rt/emul/compact/src/main/java/java/lang/ref/WeakReference.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/rt/emul/compact/src/main/java/java/lang/ref/WeakReference.java Tue Feb 26 16:54:16 2013 +0100 @@ -0,0 +1,72 @@ +/* + * Copyright (c) 1997, 2003, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package java.lang.ref; + + +/** + * Weak reference objects, which do not prevent their referents from being + * made finalizable, finalized, and then reclaimed. Weak references are most + * often used to implement canonicalizing mappings. + * + *
Suppose that the garbage collector determines at a certain point in time
+ * that an object is weakly
+ * reachable. At that time it will atomically clear all weak references to
+ * that object and all weak references to any other weakly-reachable objects
+ * from which that object is reachable through a chain of strong and soft
+ * references. At the same time it will declare all of the formerly
+ * weakly-reachable objects to be finalizable. At the same time or at some
+ * later time it will enqueue those newly-cleared weak references that are
+ * registered with reference queues.
+ *
+ * @author Mark Reinhold
+ * @since 1.2
+ */
+
+public class WeakReference