--- old/src/java.base/share/classes/sun/misc/Cleaner.java 2016-01-26 16:37:32.000000000 +0000
+++ /dev/null 2016-01-26 16:37:32.000000000 +0000
@@ -1,156 +0,0 @@
-/*
- * Copyright (c) 2003, 2013, 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 sun.misc;
-
-import java.lang.ref.*;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
-
-
-/**
- * General-purpose phantom-reference-based cleaners.
- *
- *
Cleaners are a lightweight and more robust alternative to finalization.
- * They are lightweight because they are not created by the VM and thus do not
- * require a JNI upcall to be created, and because their cleanup code is
- * invoked directly by the reference-handler thread rather than by the
- * finalizer thread. They are more robust because they use phantom references,
- * the weakest type of reference object, thereby avoiding the nasty ordering
- * problems inherent to finalization.
- *
- *
A cleaner tracks a referent object and encapsulates a thunk of arbitrary
- * cleanup code. Some time after the GC detects that a cleaner's referent has
- * become phantom-reachable, the reference-handler thread will run the cleaner.
- * Cleaners may also be invoked directly; they are thread safe and ensure that
- * they run their thunks at most once.
- *
- *
Cleaners are not a replacement for finalization. They should be used
- * only when the cleanup code is extremely simple and straightforward.
- * Nontrivial cleaners are inadvisable since they risk blocking the
- * reference-handler thread and delaying further cleanup and finalization.
- *
- *
- * @author Mark Reinhold
- */
-
-public class Cleaner
- extends PhantomReference