Quelle  Options.java   Sprache: JAVA

/*
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 *
 * 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
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 * 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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import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;

/*
 * @test
 * @bug     8006997
 * @summary ContendedPaddingWidth should be range-checked
 *
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @run driver Options
 */
public class Options {

    public static void main(String[] args) throws Exception {
        ProcessBuilder pb;
        OutputAnalyzer output;

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=-128", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldContain("ContendedPaddingWidth");
        output.shouldContain("outside the allowed range");
        output.shouldHaveExitValue(1);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=-8", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldContain("ContendedPaddingWidth");
        output.shouldContain("outside the allowed range");
        output.shouldHaveExitValue(1);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=-1", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldContain("ContendedPaddingWidth");
        output.shouldContain("outside the allowed range");
        output.shouldHaveExitValue(1);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=0", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldHaveExitValue(0);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=1", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldContain("ContendedPaddingWidth");
        output.shouldContain("must be a multiple of 8");
        output.shouldHaveExitValue(1);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=8", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldHaveExitValue(0);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=8184", "-version"); // 8192-8 = 8184
        output = new OutputAnalyzer(pb.start());
        output.shouldHaveExitValue(0);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=8191", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldContain("ContendedPaddingWidth");
        output.shouldContain("must be a multiple of 8");
        output.shouldHaveExitValue(1);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=8192", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldHaveExitValue(0);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=8193", "-version");
        output = new OutputAnalyzer(pb.start());
        output.shouldContain("ContendedPaddingWidth");
        output.shouldContain("outside the allowed range");
        output.shouldHaveExitValue(1);

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=8200", "-version"); // 8192+8 = 8200
        output = new OutputAnalyzer(pb.start());
        output.shouldContain("ContendedPaddingWidth");
        output.shouldContain("outside the allowed range");
        output.shouldHaveExitValue(1);

   }

}