--- old/src/java.xml.bind/share/classes/com/sun/istack/internal/Pool.java	2018-01-30 20:29:51.000000000 -0500
+++ /dev/null	2018-01-30 20:29:51.000000000 -0500
@@ -1,116 +0,0 @@
-/*
- * Copyright (c) 1997, 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 com.sun.istack.internal;
-
-import java.util.concurrent.ConcurrentLinkedQueue;
-import java.lang.ref.WeakReference;
-
-/**
- * Pool of reusable objects that are indistinguishable from each other,
- * such as JAXB marshallers.
- *
- * @author Kohsuke Kawaguchi
- */
-public interface Pool<T> {
-
-    /**
-     * Gets a new object from the pool.
-     *
-     * <p>
-     * If no object is available in the pool, this method creates a new one.
-     */
-    @NotNull T take();
-
-    /**
-     * Returns an object back to the pool.
-     */
-    void recycle(@NotNull T t);
-
-    /**
-     * Default implementation that uses {@link ConcurrentLinkedQueue}
-     * as the data store.
-     *
-     * <h2>Note for Implementors</h2>
-     * <p>
-     * Don't rely on the fact that this class extends from {@link ConcurrentLinkedQueue}.
-     */
-    public abstract class Impl<T> implements Pool<T> {
-
-        private volatile WeakReference<ConcurrentLinkedQueue<T>> queue;
-
-        /**
-         * Gets a new object from the pool.
-         *
-         * <p>
-         * If no object is available in the pool, this method creates a new one.
-         *
-         * @return
-         *      always non-null.
-         */
-        public final @NotNull T take() {
-            T t = getQueue().poll();
-            if(t==null) {
-                return create();
-            }
-            return t;
-        }
-
-        /**
-         * Returns an object back to the pool.
-         */
-        public final void recycle(T t) {
-            getQueue().offer(t);
-        }
-
-        private ConcurrentLinkedQueue<T> getQueue() {
-            WeakReference<ConcurrentLinkedQueue<T>> q = queue;
-            if (q != null) {
-                ConcurrentLinkedQueue<T> d = q.get();
-                if (d != null) {
-                    return d;
-                }
-            }
-            // overwrite the queue
-            ConcurrentLinkedQueue<T> d = new ConcurrentLinkedQueue<T>();
-            queue = new WeakReference<ConcurrentLinkedQueue<T>>(d);
-
-            return d;
-        }
-
-        /**
-         * Creates a new instance of object.
-         *
-         * <p>
-         * This method is used when someone wants to
-         * {@link #take() take} an object from an empty pool.
-         *
-         * <p>
-         * Also note that multiple threads may call this method
-         * concurrently.
-         */
-        protected abstract @NotNull T create();
-    }
-}