TestOnSpinWaitEnableDisable.java revision 11343:a5c726354bf2 
1/*
2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2016 Azul Systems, Inc.  All Rights Reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 */
24
25/**
26 * @test TestOnSpinWaitEnableDisable
27 * @summary Test to ensure basic functioning of java.lang.Thread.onSpinWait
28 * @bug 8157683
29 * @run main TestOnSpinWaitEnableDisable
30 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:DisableIntrinsic=_onSpinWait TestOnSpinWaitEnableDisable
31 */
32
33public class TestOnSpinWaitEnableDisable {
34    public static void main(String[] args) {
35        for (int i = 0; i < 50_000; i++) {
36            java.lang.Thread.onSpinWait();
37        }
38    }
39}
40