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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.    See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

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 * 2 along with this work; if not, write to the Free Software Foundation,

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 */

/*

 * @test

 * @bug 8149383

 * @summary -Xlog:biasedlocking should have logging from statements in the source code

 * @modules java.base/jdk.internal.misc

 *          java.management

 * @run driver BiasedLockingTest

 */

public class BiasedLockingTest {

    static void analyzeOutputOn(ProcessBuilder pb) throws Exception {

        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        output.shouldContain("Biased locking enabled");

        output.shouldHaveExitValue(0);

    }

    static void analyzeOutputOff(ProcessBuilder pb) throws Exception {

        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        output.shouldNotContain("[biasedlocking]");

        output.shouldHaveExitValue(0);

    }

    public static void main(String[] args) throws Exception {

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xlog:biasedlocking",

                                                                  "-XX:BiasedLockingStartupDelay=0",

                                                                  InnerClass.class.getName());

        analyzeOutputOn(pb);

        pb = ProcessTools.createJavaProcessBuilder("-XX:+TraceBiasedLocking",

                                                   "-XX:BiasedLockingStartupDelay=0",

                                                   InnerClass.class.getName());

        analyzeOutputOn(pb);

        pb = ProcessTools.createJavaProcessBuilder("-Xlog:biasedlocking=off",

                                                   "-XX:BiasedLockingStartupDelay=0",

                                                   InnerClass.class.getName());

        analyzeOutputOff(pb);

        pb = ProcessTools.createJavaProcessBuilder("-XX:-TraceBiasedLocking",

                                                   "-XX:BiasedLockingStartupDelay=0",

                                                   InnerClass.class.getName());

        analyzeOutputOff(pb);

    }

    public static class InnerClass {

        public static void main(String[] args) {

            System.out.println("Biased Locking test");

        }

    }

}