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