--- a/jdk/src/java.base/share/classes/sun/misc/Contended.java	Mon Nov 30 13:27:19 2015 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,83 +0,0 @@
-/*
- * Copyright (c) 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.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-/**
- * <p>An annotation expressing that objects and/or their fields are
- * expected to encounter memory contention, generally in the form of
- * "false sharing". This annotation serves as a hint that such objects
- * and fields should reside in locations isolated from those of other
- * objects or fields. Susceptibility to memory contention is a
- * property of the intended usages of objects and fields, not their
- * types or qualifiers. The effects of this annotation will nearly
- * always add significant space overhead to objects. The use of
- * {@code @Contended} is warranted only when the performance impact of
- * this time/space tradeoff is intrinsically worthwhile; for example,
- * in concurrent contexts in which each instance of the annotated
- * class is often accessed by a different thread.
- *
- * <p>A {@code @Contended} field annotation may optionally include a
- * <i>contention group</i> tag. A contention group defines a set of one
- * or more fields that collectively must be isolated from all other
- * contention groups. The fields in the same contention group may not be
- * pairwise isolated. With no contention group tag (or with the default
- * empty tag: "") each {@code @Contended} field resides in its own
- * <i>distinct</i> and <i>anonymous</i> contention group.
- *
- * <p>When the annotation is used at the class level, the effect is
- * equivalent to grouping all the declared fields not already having the
- * {@code @Contended} annotation into the same anonymous group.
- * With the class level annotation, implementations may choose different
- * isolation techniques, such as isolating the entire object, rather than
- * isolating distinct fields. A contention group tag has no meaning
- * in a class level {@code @Contended} annotation, and is ignored.
- *
- * <p>The class level {@code @Contended} annotation is not inherited and has
- * no effect on the fields declared in any sub-classes. The effects of all
- * {@code @Contended} annotations, however, remain in force for all
- * subclass instances, providing isolation of all the defined contention
- * groups. Contention group tags are not inherited, and the same tag used
- * in a superclass and subclass, represent distinct contention groups.
- *
- * @since 1.8
- */
-@Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.FIELD, ElementType.TYPE})
-public @interface Contended {
-
-    /**
-     * The (optional) contention group tag.
-     * This tag is only meaningful for field level annotations.
-     *
-     * @return contention group tag.
-     */
-    String value() default "";
-}