TestUseRTMLockingOptionWithBiasedLocking.java revision 11707:ad7af1afda7a 
1/*
2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. 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
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23 */
24
25/**
26 * @test
27 * @bug 8031320
28 * @summary Verify processing of UseRTMLocking and UseBiasedLocking
29 *          options combination on CPU and VM with rtm support.
30 * @library /testlibrary /test/lib /
31 * @modules java.base/jdk.internal.misc
32 *          java.management
33 *
34 * @build compiler.rtm.cli.TestUseRTMLockingOptionWithBiasedLocking
35 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
36 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
38 *                   -XX:+WhiteBoxAPI
39 *                   compiler.rtm.cli.TestUseRTMLockingOptionWithBiasedLocking
40 */
41
42package compiler.rtm.cli;
43
44import compiler.testlibrary.rtm.predicate.SupportedCPU;
45import compiler.testlibrary.rtm.predicate.SupportedVM;
46import jdk.test.lib.ExitCode;
47import jdk.test.lib.cli.CommandLineOptionTest;
48import jdk.test.lib.cli.predicate.AndPredicate;
49
50public class TestUseRTMLockingOptionWithBiasedLocking
51        extends CommandLineOptionTest {
52    private TestUseRTMLockingOptionWithBiasedLocking() {
53        super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
54    }
55
56    @Override
57    public void runTestCases() throws Throwable {
58        String warningMessage
59                = RTMGenericCommandLineOptionTest.RTM_BIASED_LOCKING_WARNING;
60        String shouldPassMessage = "JVM startup should pass with both "
61                + "-XX:+UseRTMLocking and "
62                + "-XX:-UseBiasedLocking flags set without any warnings";
63        // verify that we will not get a warning
64        CommandLineOptionTest.verifySameJVMStartup(null,
65                new String[] { warningMessage }, shouldPassMessage,
66                shouldPassMessage, ExitCode.OK,
67                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
68                "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking");
69
70        // verify that we will get a warning
71        CommandLineOptionTest.verifySameJVMStartup(
72                new String[] { warningMessage }, null,
73                "JVM startup should pass when both -XX:+UseRTMLocking and "
74                        + "-XX:+UseBiasedLocking flags set",
75                "Flags -XX:+UseRTMLocking"
76                        + " and -XX:+UseBiasedLocking conflicts. "
77                        + "Warning should be shown.", ExitCode.OK,
78                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
79                "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
80        // verify that UseBiasedLocking is false when we use rtm locking
81        CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking",
82                "false",
83                "Value of option 'UseBiasedLocking' should be false if"
84                        + "-XX:+UseRTMLocking flag set.",
85                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
86                "-XX:+UseRTMLocking");
87        // verify that we can't turn on biased locking when
88        // using rtm locking
89        CommandLineOptionTest
90                .verifyOptionValueForSameVM(
91                        "UseBiasedLocking",
92                        "false",
93                        "Value of option 'UseBiasedLocking' should be false if"
94                                + "both -XX:+UseRTMLocking and "
95                                + "-XX:+UseBiasedLocking flags set.",
96                        CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
97                        "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
98    }
99
100    public static void main(String args[]) throws Throwable {
101        new TestUseRTMLockingOptionWithBiasedLocking().test();
102    }
103}
104