1 /*
2 * Copyright (c) 2017, 2020, 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 id=passive
27 * @summary Tests that we pass at least one jcstress-like test with all verification turned on
28 * @requires vm.gc.Shenandoah
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 id=default
45 * @summary Tests that we pass at least one jcstress-like test with all verification turned on
46 * @requires vm.gc.Shenandoah
47 * @requires !vm.debug
48 * @modules java.base/jdk.internal.misc
49 * java.management
50 *
51 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
52 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
53 * -XX:+ShenandoahVerify
54 * TestVerifyJCStress
55 *
56 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
57 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=compact
58 * -XX:+ShenandoahVerify
59 * TestVerifyJCStress
60 */
61
62 /*
63 * @test id=iu-debug
64 * @summary Tests that we pass at least one jcstress-like test with all verification turned on
65 * @requires vm.gc.Shenandoah
66 * @requires vm.debug
67 * @modules java.base/jdk.internal.misc
68 * java.management
69 *
70 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
71 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
72 * -XX:+ShenandoahVerify -XX:+ShenandoahVerifyOptoBarriers
73 * TestVerifyJCStress
74 */
75
76 /*
77 * @test id=iu
78 * @summary Tests that we pass at least one jcstress-like test with all verification turned on
79 * @requires vm.gc.Shenandoah
80 * @requires !vm.debug
81 * @modules java.base/jdk.internal.misc
82 * java.management
83 *
84 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
85 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
86 * -XX:+ShenandoahVerify
87 * TestVerifyJCStress
88 */
89
90 /*
91 * @test id=iu-c1
92 * @summary Tests that we pass at least one jcstress-like test with all verification turned on
93 * @requires vm.gc.Shenandoah
94 * @modules java.base/jdk.internal.misc
95 * java.management
96 *
97 * @run main/othervm -Xmx1g -Xms1g -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions
98 * -XX:+UseShenandoahGC -XX:ShenandoahGCMode=iu
99 * -XX:+ShenandoahVerify -XX:TieredStopAtLevel=1
100 * TestVerifyJCStress
101 */
102
103
104 import java.util.*;
105 import java.util.concurrent.*;
106 import java.util.concurrent.locks.*;
107
108 public class TestVerifyJCStress {
109
110 public static void main(String[] args) throws Exception {
111 ExecutorService service = Executors.newFixedThreadPool(
112 2,
113 r -> {
114 Thread t = new Thread(r);
115 t.setDaemon(true);
116 return t;
117 }
118 );
119
120 for (int c = 0; c < 10000; c++) {
121 final Test[] tests = new Test[10000];
122 for (int t = 0; t < tests.length; t++) {
123 tests[t] = new Test();
124 }
125
126 Future<?> f1 = service.submit(() -> {
127 IntResult2 r = new IntResult2();
128 for (Test test : tests) {
129 test.RL_Us(r);
130 }
131 });
132 Future<?> f2 = service.submit(() -> {
133 for (Test test : tests) {
134 test.WLI_Us();
135 }
136 });
137
138 f1.get();
139 f2.get();
140 }
141 }
142
143 public static class IntResult2 {
144 int r1, r2;
145 }
146
147 public static class Test {
148 final StampedLock lock = new StampedLock();
149
150 int x, y;
151
152 public void RL_Us(IntResult2 r) {
153 StampedLock lock = this.lock;
154 long stamp = lock.readLock();
155 r.r1 = x;
156 r.r2 = y;
157 lock.unlock(stamp);
158 }
159
160 public void WLI_Us() {
161 try {
162 StampedLock lock = this.lock;
163 long stamp = lock.writeLockInterruptibly();
164 x = 1;
165 y = 2;
166 lock.unlock(stamp);
167 } catch (InterruptedException e) {
168 throw new RuntimeException(e);
169 }
170 }
171 }
172
173 }