test/runtime/contended/Options.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * 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,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 */

import com.oracle.java.testlibrary.*;

/*
 * @test
 * @bug     8006997
 * @summary ContendedPaddingWidth should be range-checked
 *
 * @library /testlibrary
 * @run main 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("must be in between");
        output.shouldHaveExitValue(1);

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

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

        pb = ProcessTools.createJavaProcessBuilder("-XX:ContendedPaddingWidth=8200", "-version"); // 8192+8 = 8200
        output = new OutputAnalyzer(pb.start());
        output.shouldContain("ContendedPaddingWidth");
        output.shouldContain("must be in between");
        output.shouldHaveExitValue(1);

   }

}