jdk/test/com/sun/management/HotSpotDiagnosticMXBean/GetDiagnosticOptions.java

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/*
 * @test
 * @bug     6658779
 * @summary Basic Test for HotSpotDiagnosticMXBean.getDiagnosticOptions()
 * @author  Daniel Fuchs
 *
 * @modules jdk.management
 * @run main GetDiagnosticOptions
 */

import com.sun.management.HotSpotDiagnosticMXBean;
import com.sun.management.VMOption;
import java.lang.management.ManagementFactory;
import java.util.List;
import javax.management.MBeanServer;

public class GetDiagnosticOptions {
    private static String HOTSPOT_DIAGNOSTIC_MXBEAN_NAME =
        "com.sun.management:type=HotSpotDiagnostic";

    public static void main(String[] args) throws Exception {
        List<HotSpotDiagnosticMXBean> list =
            ManagementFactory.getPlatformMXBeans(HotSpotDiagnosticMXBean.class);
        HotSpotDiagnosticMXBean mbean = list.get(0);
        checkDiagnosticOptions(mbean);

        MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
        mbean = ManagementFactory.newPlatformMXBeanProxy(mbs,
                    HOTSPOT_DIAGNOSTIC_MXBEAN_NAME,
                    HotSpotDiagnosticMXBean.class);
        checkDiagnosticOptions(mbean);
    }

    private static void checkDiagnosticOptions(HotSpotDiagnosticMXBean mbean) {
        List<VMOption> options = mbean.getDiagnosticOptions();
        for (VMOption opt : options) {
            System.out.println("option: "+opt.getName()+"="+opt.getValue());
        }
    }
}