1 /*
   2  * Copyright (c) 2019, Red Hat, Inc. 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 TestClone
  26  * @summary Test clone barriers work correctly
  27  * @key gc
  28  *
  29  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  30  *                   -XX:+UseShenandoahGC
  31  *                   TestClone
  32  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  33  *                   -XX:+UseShenandoahGC
  34  *                   -Xint
  35  *                   TestClone
  36  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  37  *                   -XX:+UseShenandoahGC
  38  *                   -XX:-TieredCompilation
  39  *                   TestClone
  40  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  41  *                   -XX:+UseShenandoahGC
  42  *                   -XX:TieredStopAtLevel=1
  43  *                   TestClone
  44  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  45  *                   -XX:+UseShenandoahGC
  46  *                   -XX:TieredStopAtLevel=4
  47  *                   TestClone
  48  */
  49 
  50 /*
  51  * @test TestClone
  52  * @summary Test clone barriers work correctly
  53  * @key gc
  54  *
  55  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  56  *                   -XX:+UseShenandoahGC
  57  *                   -XX:+ShenandoahVerify
  58  *                   TestClone
  59  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  60  *                   -XX:+UseShenandoahGC
  61  *                   -XX:+ShenandoahVerify
  62  *                   -Xint
  63  *                   TestClone
  64  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  65  *                   -XX:+UseShenandoahGC
  66  *                   -XX:+ShenandoahVerify
  67  *                   -XX:-TieredCompilation
  68  *                   TestClone
  69  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  70  *                   -XX:+UseShenandoahGC
  71  *                   -XX:+ShenandoahVerify
  72  *                   -XX:TieredStopAtLevel=1
  73  *                   TestClone
  74  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  75  *                   -XX:+UseShenandoahGC
  76  *                   -XX:+ShenandoahVerify
  77  *                   -XX:TieredStopAtLevel=4
  78  *                   TestClone
  79  */
  80 
  81 /*
  82  * @test TestClone
  83  * @summary Test clone barriers work correctly
  84  * @key gc
  85  *
  86  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  87  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  88  *                   TestClone
  89  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  90  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  91  *                   -Xint
  92  *                   TestClone
  93  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  94  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  95  *                   -XX:-TieredCompilation
  96  *                   TestClone
  97  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
  98  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
  99  *                   -XX:TieredStopAtLevel=1
 100  *                   TestClone
 101  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 102  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
 103  *                   -XX:TieredStopAtLevel=4
 104  *                   TestClone
 105  */
 106 
 107 /*
 108  * @test TestClone
 109  * @summary Test clone barriers work correctly
 110  * @key gc
 111  * @requires (vm.bits == "64")
 112  *
 113  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 114  *                   -XX:-UseCompressedOops
 115  *                   -XX:+UseShenandoahGC
 116  *                   TestClone
 117  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 118  *                   -XX:-UseCompressedOops
 119  *                   -XX:+UseShenandoahGC
 120  *                   -Xint
 121  *                   TestClone
 122  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 123  *                   -XX:-UseCompressedOops
 124  *                   -XX:+UseShenandoahGC
 125  *                   -XX:-TieredCompilation
 126  *                   TestClone
 127  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 128  *                   -XX:-UseCompressedOops
 129  *                   -XX:+UseShenandoahGC
 130  *                   -XX:TieredStopAtLevel=1
 131  *                   TestClone
 132  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 133  *                   -XX:-UseCompressedOops
 134  *                   -XX:+UseShenandoahGC
 135  *                   -XX:TieredStopAtLevel=4
 136  *                   TestClone
 137  */
 138 
 139 /*
 140  * @test TestClone
 141  * @summary Test clone barriers work correctly
 142  * @key gc
 143  * @requires (vm.bits == "64")
 144  *
 145  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 146  *                   -XX:-UseCompressedOops
 147  *                   -XX:+UseShenandoahGC
 148  *                   -XX:+ShenandoahVerify
 149  *                   TestClone
 150  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 151  *                   -XX:-UseCompressedOops
 152  *                   -XX:+UseShenandoahGC
 153  *                   -XX:+ShenandoahVerify
 154  *                   -Xint
 155  *                   TestClone
 156  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 157  *                   -XX:-UseCompressedOops
 158  *                   -XX:+UseShenandoahGC
 159  *                   -XX:+ShenandoahVerify
 160  *                   -XX:-TieredCompilation
 161  *                   TestClone
 162  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 163  *                   -XX:-UseCompressedOops
 164  *                   -XX:+UseShenandoahGC
 165  *                   -XX:+ShenandoahVerify
 166  *                   -XX:TieredStopAtLevel=1
 167  *                   TestClone
 168  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 169  *                   -XX:-UseCompressedOops
 170  *                   -XX:+UseShenandoahGC
 171  *                   -XX:+ShenandoahVerify
 172  *                   -XX:TieredStopAtLevel=4
 173  *                   TestClone
 174  */
 175 
 176 /*
 177  * @test TestClone
 178  * @summary Test clone barriers work correctly
 179  * @key gc
 180  * @requires (vm.bits == "64")
 181  *
 182  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 183  *                   -XX:-UseCompressedOops
 184  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
 185  *                   TestClone
 186  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 187  *                   -XX:-UseCompressedOops
 188  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
 189  *                   -Xint
 190  *                   TestClone
 191  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 192  *                   -XX:-UseCompressedOops
 193  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
 194  *                   -XX:-TieredCompilation
 195  *                   TestClone
 196  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 197  *                   -XX:-UseCompressedOops
 198  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
 199  *                   -XX:TieredStopAtLevel=1
 200  *                   TestClone
 201  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms1g -Xmx1g
 202  *                   -XX:-UseCompressedOops
 203  *                   -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
 204  *                   -XX:TieredStopAtLevel=4
 205  *                   TestClone
 206  */
 207 
 208 
 209 public class TestClone {
 210 
 211     public static void main(String[] args) throws Exception {
 212         for (int i = 0; i < 10000; i++) {
 213             Object[] src = new Object[i];
 214             for (int c = 0; c < src.length; c++) {
 215                 src[c] = new Object();
 216             }
 217             testWith(src);
 218         }
 219     }
 220 
 221     static void testWith(Object[] src) {
 222         Object[] dst = src.clone();
 223         int srcLen = src.length;
 224         int dstLen = dst.length;
 225         if (srcLen != dstLen) {
 226             throw new IllegalStateException("Lengths do not match: " + srcLen + " vs " + dstLen);
 227         }
 228         for (int c = 0; c < src.length; c++) {
 229             Object s = src[c];
 230             Object d = dst[c];
 231             if (s != d) {
 232                 throw new IllegalStateException("Elements do not match at " + c + ": " + s + " vs " + d);
 233             }
 234         }
 235     }
 236 }