--- a/jdk/test/java/util/concurrent/ConcurrentLinkedQueue/ConcurrentQueueLoops.java	Tue Jul 28 11:15:49 2009 +0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,146 +0,0 @@
-/*
- * 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.
- *
- * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- */
-
-/*
- * This file is available under and governed by the GNU General Public
- * License version 2 only, as published by the Free Software Foundation.
- * However, the following notice accompanied the original version of this
- * file:
- *
- * Written by Doug Lea with assistance from members of JCP JSR-166
- * Expert Group and released to the public domain, as explained at
- * http://creativecommons.org/licenses/publicdomain
- */
-
-/*
- * @test
- * @bug 4486658
- * @compile -source 1.5 ConcurrentQueueLoops.java
- * @run main/timeout=230 ConcurrentQueueLoops
- * @summary Checks that a set of threads can repeatedly get and modify items
- */
-
-import java.util.*;
-import java.util.concurrent.*;
-import java.util.concurrent.atomic.*;
-
-public class ConcurrentQueueLoops {
-    static final ExecutorService pool = Executors.newCachedThreadPool();
-    static AtomicInteger totalItems;
-    static boolean print = false;
-
-    public static void main(String[] args) throws Exception {
-        int maxStages = 8;
-        int items = 100000;
-
-        if (args.length > 0)
-            maxStages = Integer.parseInt(args[0]);
-
-        print = false;
-        System.out.println("Warmup...");
-        oneRun(1, items);
-        Thread.sleep(100);
-        oneRun(1, items);
-        Thread.sleep(100);
-        print = true;
-
-        for (int i = 1; i <= maxStages; i += (i+1) >>> 1) {
-            oneRun(i, items);
-        }
-        pool.shutdown();
-        if (! pool.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS))
-            throw new Error();
-   }
-
-    static class Stage implements Callable<Integer> {
-        final Queue<Integer> queue;
-        final CyclicBarrier barrier;
-        int items;
-        Stage (Queue<Integer> q, CyclicBarrier b, int items) {
-            queue = q;
-            barrier = b;
-            this.items = items;
-        }
-
-        public Integer call() {
-            // Repeatedly take something from queue if possible,
-            // transform it, and put back in.
-            try {
-                barrier.await();
-                int l = 4321;
-                int takes = 0;
-                for (;;) {
-                    Integer item = queue.poll();
-                    if (item != null) {
-                        ++takes;
-                        l = LoopHelpers.compute2(item.intValue());
-                    }
-                    else if (takes != 0) {
-                        totalItems.getAndAdd(-takes);
-                        takes = 0;
-                    }
-                    else if (totalItems.get() <= 0)
-                        break;
-                    l = LoopHelpers.compute1(l);
-                    if (items > 0) {
-                        --items;
-                        queue.offer(new Integer(l));
-                    }
-                    else if ( (l & (3 << 5)) == 0) // spinwait
-                        Thread.sleep(1);
-                }
-                return new Integer(l);
-            }
-            catch (Exception ie) {
-                ie.printStackTrace();
-                throw new Error("Call loop failed");
-            }
-        }
-    }
-
-    static void oneRun(int n, int items) throws Exception {
-        Queue<Integer> q = new ConcurrentLinkedQueue<Integer>();
-        LoopHelpers.BarrierTimer timer = new LoopHelpers.BarrierTimer();
-        CyclicBarrier barrier = new CyclicBarrier(n + 1, timer);
-        totalItems = new AtomicInteger(n * items);
-        ArrayList<Future<Integer>> results = new ArrayList<Future<Integer>>(n);
-        for (int i = 0; i < n; ++i)
-            results.add(pool.submit(new Stage(q, barrier, items)));
-
-        if (print)
-            System.out.print("Threads: " + n + "\t:");
-        barrier.await();
-        int total = 0;
-        for (int i = 0; i < n; ++i) {
-            Future<Integer> f = results.get(i);
-            Integer r = f.get();
-            total += r.intValue();
-        }
-        long endTime = System.nanoTime();
-        long time = endTime - timer.startTime;
-        if (print)
-            System.out.println(LoopHelpers.rightJustify(time / (items * n)) + " ns per item");
-        if (total == 0) // avoid overoptimization
-            System.out.println("useless result: " + total);
-
-    }
-}