1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4221795 8032446
  27  * @summary Confirm that java.text.Normalizer and sun.text.Normalize are
  28  * thread-safe.
  29  * @modules java.base/sun.text java.base/sun.text.normalizer
  30  * @compile -XDignore.symbol.file ThreadSafeTest.java
  31  * @run main/othervm -esa ThreadSafeTest 5 10
  32  */
  33 
  34 // Usage: java ThreadSafeTest [threadsFactor [duration]]
  35 public class ThreadSafeTest {
  36 
  37     static volatile boolean runrun = true;
  38     static volatile boolean error = false;
  39 
  40     public static void main(String[] args) throws Exception {
  41         int threadsFactor = 5;
  42         if (args.length > 0) {
  43             threadsFactor = Math.max(Integer.parseInt(args[0]), 5);
  44         }
  45         int duration = 180;
  46         if (args.length > 1) {
  47             duration = Math.max(5, Integer.parseInt(args[1]));
  48         }
  49         int nProcessors = Runtime.getRuntime().availableProcessors();
  50         int nTasks = nProcessors * threadsFactor;
  51         Thread[] tasks = new Thread[nTasks];
  52 
  53         System.out.println("Testing with " + nTasks + " threads on " +
  54                            nProcessors + " processors for " + duration +
  55                            " seconds.");
  56 
  57         for (int i = 0; i < nTasks; i++) {
  58             tasks[i] = new Thread(new Worker());
  59         }
  60         for (int i = 0; i < nTasks; i++) {
  61             tasks[i].start();
  62         }
  63 
  64         try {
  65             for (int i = 0; runrun && i < duration; i++) {
  66                 Thread.sleep(1000); // 1 second
  67             }
  68             runrun = false;
  69             for (int i = 0; i < nTasks; i++) {
  70                 tasks[i].join();
  71             }
  72         }
  73         catch (InterruptedException e) {
  74         }
  75 
  76         if (error) {
  77             throw new RuntimeException("Normalizer is not thread-safe.");
  78         }
  79     }
  80 
  81     static void testJavaNormalize(int num, java.text.Normalizer.Form form) {
  82         String got = java.text.Normalizer.normalize(data[num][0], form);
  83         if (!got.equals(data[num][1])) {
  84             System.err.println("java.text.Normalizer.normalize(" +
  85                                form.toString() + ") failed.");
  86             error = true;
  87         }
  88     }
  89 
  90     static void testSunNormalize(int num, java.text.Normalizer.Form form,
  91                                  int option) {
  92         String got = sun.text.Normalizer.normalize(data[num][0], form, option);
  93         if (!got.equals(data[num][1])) {
  94             System.err.println("sun.text.Normalizer.normalize(" +
  95                                form.toString() + ", " +
  96                                Integer.toHexString(option) + ") failed.");
  97             error = true;
  98         }
  99     }
 100 
 101     static void testIsNormalized(int num, java.text.Normalizer.Form form) {
 102         boolean normalized = java.text.Normalizer.isNormalized(data[num][1], form);
 103         if (!normalized) {
 104             System.err.println("java.text.Normalizer.isNormalized(" +
 105                                form.toString() + ") failed.");
 106             error = true;
 107         }
 108     }
 109 
 110     static class Worker implements Runnable {
 111         public void run() {
 112             while (runrun) {
 113                 testJavaNormalize(0, java.text.Normalizer.Form.NFKC);
 114                 testSunNormalize(1, java.text.Normalizer.Form.NFC,
 115                                  sun.text.Normalizer.UNICODE_3_2);
 116                 testJavaNormalize(2, java.text.Normalizer.Form.NFKD);
 117                 testSunNormalize(3, java.text.Normalizer.Form.NFC,
 118                             sun.text.normalizer.NormalizerBase.UNICODE_LATEST);
 119                 testJavaNormalize(4, java.text.Normalizer.Form.NFD);
 120 
 121                 testIsNormalized(0, java.text.Normalizer.Form.NFKC);
 122                 testIsNormalized(2, java.text.Normalizer.Form.NFKD);
 123                 testIsNormalized(4, java.text.Normalizer.Form.NFD);
 124 
 125                 if (error) {
 126                     runrun = false;
 127                     return;
 128                 }
 129             }
 130         }
 131     }
 132 
 133     static final String[][] data = {
 134      /*      From:                             To:           */
 135       {"A\u0300\u0316",                  "\u00C0\u0316"},
 136       {"\u0071\u0307\u0323\u0072",       "\u0071\u0323\u0307\u0072"},
 137       {"\u0f77",                         "\u0fb2\u0f71\u0f80"},
 138       {"D\u0307\u0328\u0323",            "\u1e0c\u0328\u0307"},
 139       {"\u0f71\u0f72\u0f73\u0f74\u0f75",
 140                  "\u0F71\u0F71\u0F71\u0F72\u0F72\u0F74\u0F74"},
 141     };
 142 }