1 /* 2 * Copyright (c) 2017, 2018, 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 /* 26 * @test TestVerifyJCStress 27 * @summary Tests that we pass at least one jcstress-like test with all verification turned on 28 * @requires vm.gc.Shenandoah & !vm.graal.enabled 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * 32 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 33 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 34 * -XX:+ShenandoahDegeneratedGC -XX:+ShenandoahVerify 35 * TestVerifyJCStress 36 * 37 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 38 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=passive 39 * -XX:-ShenandoahDegeneratedGC -XX:+ShenandoahVerify 40 * TestVerifyJCStress 41 */ 42 43 /* 44 * @test TestVerifyJCStress 45 * @summary Tests that we pass at least one jcstress-like test with all verification turned on 46 * @requires vm.gc.Shenandoah & !vm.graal.enabled 47 * @modules java.base/jdk.internal.misc 48 * java.management 49 * 50 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 51 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive 52 * -XX:+ShenandoahVerify -XX:+IgnoreUnrecognizedVMOptions -XX:+ShenandoahVerifyOptoBarriers 53 * TestVerifyJCStress 54 * 55 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 56 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact 57 * -XX:+ShenandoahVerify -XX:+IgnoreUnrecognizedVMOptions -XX:+ShenandoahVerifyOptoBarriers 58 * TestVerifyJCStress 59 */ 60 61 /* 62 * @test TestVerifyJCStress 63 * @summary Tests that we pass at least one jcstress-like test with all verification turned on 64 * @requires vm.gc.Shenandoah & !vm.graal.enabled 65 * @modules java.base/jdk.internal.misc 66 * java.management 67 * 68 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions 69 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu 70 * -XX:+ShenandoahVerify -XX:+IgnoreUnrecognizedVMOptions -XX:+ShenandoahVerifyOptoBarriers 71 * TestVerifyJCStress 72 */ 73 74 import java.util.*; 75 import java.util.concurrent.*; 76 import java.util.concurrent.locks.*; 77 78 public class TestVerifyJCStress { 79 80 public static void main(String[] args) throws Exception { 81 ExecutorService service = Executors.newFixedThreadPool( 82 2, 83 r -> { 84 Thread t = new Thread(r); 85 t.setDaemon(true); 86 return t; 87 } 88 ); 89 90 for (int c = 0; c < 10000; c++) { 91 final Test[] tests = new Test[10000]; 92 for (int t = 0; t < tests.length; t++) { 93 tests[t] = new Test(); 94 } 95 96 Future<?> f1 = service.submit(() -> { 97 IntResult2 r = new IntResult2(); 98 for (Test test : tests) { 99 test.RL_Us(r); 100 } 101 }); 102 Future<?> f2 = service.submit(() -> { 103 for (Test test : tests) { 104 test.WLI_Us(); 105 } 106 }); 107 108 f1.get(); 109 f2.get(); 110 } 111 } 112 113 public static class IntResult2 { 114 int r1, r2; 115 } 116 117 public static class Test { 118 final StampedLock lock = new StampedLock(); 119 120 int x, y; 121 122 public void RL_Us(IntResult2 r) { 123 StampedLock lock = this.lock; 124 long stamp = lock.readLock(); 125 r.r1 = x; 126 r.r2 = y; 127 lock.unlock(stamp); 128 } 129 130 public void WLI_Us() { 131 try { 132 StampedLock lock = this.lock; 133 long stamp = lock.writeLockInterruptibly(); 134 x = 1; 135 y = 2; 136 lock.unlock(stamp); 137 } catch (InterruptedException e) { 138 throw new RuntimeException(e); 139 } 140 } 141 } 142 143 }