Java Code Examples for java.lang.management.ManagementFactory#getPlatformMXBean()

The following examples show how to use java.lang.management.ManagementFactory#getPlatformMXBean() .
Example 1
Project: jdk8u-dev-jdk   File: PlatformLoggingMXBeanTest.java    License: GNU General Public License v2.0 6 votes vote down vote up
public static void main(String[] argv) throws Exception {
    PlatformLoggingMXBean mbean =
        ManagementFactory.getPlatformMXBean(PlatformLoggingMXBean.class);
    ObjectName objname = mbean.getObjectName();
    if (!objname.equals(new ObjectName(LogManager.LOGGING_MXBEAN_NAME))) {
        throw new RuntimeException("Invalid ObjectName " + objname);
    }

    // check if the PlatformLoggingMXBean is registered in the platform MBeanServer
    MBeanServer platformMBS = ManagementFactory.getPlatformMBeanServer();
    ObjectName objName = new ObjectName(LogManager.LOGGING_MXBEAN_NAME);

    // We could call mbs.isRegistered(objName) here.
    // Calling getMBeanInfo will throw exception if not found.
    platformMBS.getMBeanInfo(objName);

    if (!platformMBS.isInstanceOf(objName, "java.lang.management.PlatformLoggingMXBean") ||
        !platformMBS.isInstanceOf(objName, "java.util.logging.LoggingMXBean")) {
        throw new RuntimeException(objName + " is of unexpected type");
    }

    // test if PlatformLoggingMXBean works properly in a MBeanServer
    PlatformLoggingMXBeanTest test = new PlatformLoggingMXBeanTest();
    test.runTest(mbean);
}
 
Example 2
Project: openjdk-jdk9   File: VMOptionOpenDataTest.java    License: GNU General Public License v2.0 6 votes vote down vote up
public static void main(String... args) throws Exception {
    MBeanServerConnection msc = ManagementFactory.getPlatformMBeanServer();
    HotSpotDiagnosticMXBean mxbean =
        ManagementFactory.getPlatformMXBean(msc, HotSpotDiagnosticMXBean.class);


    String[] signatures = new String[] {
        String.class.getName()
    };
    Object obj = msc.invoke(mxbean.getObjectName(), "getVMOption",
        new String[] { "PrintVMOptions"}, signatures);

    CompositeData data = (CompositeData)obj;
    validateType(data);

    VMOption option = mxbean.getVMOption("PrintVMOptions");
    VMOption o = VMOption.from(data);
    assertEquals(option, o);
}
 
Example 3
Project: openjdk-8   File: PlatformLoggingMXBeanTest.java    License: GNU General Public License v2.0 6 votes vote down vote up
public static void main(String[] argv) throws Exception {
    PlatformLoggingMXBean mbean =
        ManagementFactory.getPlatformMXBean(PlatformLoggingMXBean.class);
    ObjectName objname = mbean.getObjectName();
    if (!objname.equals(new ObjectName(LogManager.LOGGING_MXBEAN_NAME))) {
        throw new RuntimeException("Invalid ObjectName " + objname);
    }

    // check if the PlatformLoggingMXBean is registered in the platform MBeanServer
    MBeanServer platformMBS = ManagementFactory.getPlatformMBeanServer();
    ObjectName objName = new ObjectName(LogManager.LOGGING_MXBEAN_NAME);

    // We could call mbs.isRegistered(objName) here.
    // Calling getMBeanInfo will throw exception if not found.
    platformMBS.getMBeanInfo(objName);

    if (!platformMBS.isInstanceOf(objName, "java.lang.management.PlatformLoggingMXBean") ||
        !platformMBS.isInstanceOf(objName, "java.util.logging.LoggingMXBean")) {
        throw new RuntimeException(objName + " is of unexpected type");
    }

    // test if PlatformLoggingMXBean works properly in a MBeanServer
    PlatformLoggingMXBeanTest test = new PlatformLoggingMXBeanTest();
    test.runTest(mbean);
}
 
Example 4
Project: native-obfuscator   File: PlatformLoggingMXBeanTest.java    License: GNU General Public License v3.0 6 votes vote down vote up
public static void main(String[] argv) throws Exception {
    PlatformLoggingMXBean mbean =
        ManagementFactory.getPlatformMXBean(PlatformLoggingMXBean.class);
    ObjectName objname = mbean.getObjectName();
    if (!objname.equals(new ObjectName(LogManager.LOGGING_MXBEAN_NAME))) {
        throw new RuntimeException("Invalid ObjectName " + objname);
    }

    // check if the PlatformLoggingMXBean is registered in the platform MBeanServer
    MBeanServer platformMBS = ManagementFactory.getPlatformMBeanServer();
    ObjectName objName = new ObjectName(LogManager.LOGGING_MXBEAN_NAME);

    // We could call mbs.isRegistered(objName) here.
    // Calling getMBeanInfo will throw exception if not found.
    platformMBS.getMBeanInfo(objName);

    if (!platformMBS.isInstanceOf(objName, "java.lang.management.PlatformLoggingMXBean") ||
        !platformMBS.isInstanceOf(objName, "java.util.logging.LoggingMXBean")) {
        throw new RuntimeException(objName + " is of unexpected type");
    }

    // test if PlatformLoggingMXBean works properly in a MBeanServer
    PlatformLoggingMXBeanTest test = new PlatformLoggingMXBeanTest();
    test.runTest(mbean);
}
 
Example 5
Project: LagMonitor   File: HeapCommand.java    License: MIT License 6 votes vote down vote up
private void onDump(CommandSender sender) {
    try {
        //test if this class is available
        Class.forName("com.sun.management.HotSpotDiagnosticMXBean");

        //can be useful for dumping heaps in binary format
        HotSpotDiagnosticMXBean hostSpot = ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);

        Path dumpFile = getNewDumpFile();
        hostSpot.dumpHeap(dumpFile.toAbsolutePath().toString(), DUMP_DEAD_OBJECTS);

        sender.sendMessage(ChatColor.GRAY + "Dump created: " + dumpFile.getFileName());
        sender.sendMessage(ChatColor.GRAY + "You can analyse it using VisualVM");
    } catch (ClassNotFoundException notFoundEx) {
        sendError(sender, NOT_ORACLE_MSG);
    } catch (Exception ex) {
        plugin.getLogger().log(Level.SEVERE, null, ex);
        sendError(sender, "An exception occurred. Please check the server log");
    }
}
 
Example 6
Project: mdw   File: CpuMetric.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public List<Metric> collect() {
    if (osMxBean == null)
        osMxBean = ManagementFactory.getPlatformMXBean(OperatingSystemMXBean.class);
    long process = Math.round(osMxBean.getProcessCpuLoad() * 100);
    long other = Math.round(osMxBean.getSystemCpuLoad() * 100) - process;
    List<Metric> metrics = new ArrayList<>();
    metrics.add(new Metric("jvm", "JVM", process));
    metrics.add(new Metric("other", "Other", other));
    return metrics;
}
 
Example 7
Project: incubator-gobblin   File: ContainerHealthMetricsService.java    License: Apache License 2.0 5 votes vote down vote up
public ContainerHealthMetricsService(Config config) {
  this.metricReportingInterval = ConfigUtils.getLong(config, CONTAINER_METRICS_SERVICE_REPORTING_INTERVAL_SECONDS, DEFAULT_CONTAINER_METRICS_REPORTING_INTERVAL);
  this.operatingSystemMXBean = ManagementFactory.getPlatformMXBean(OperatingSystemMXBean.class);
  this.memoryMXBean = ManagementFactory.getMemoryMXBean();
  this.garbageCollectorMXBeans = ManagementFactory.getGarbageCollectorMXBeans();
  this.lastGcStats = new GcStats();
  this.currentGcStats = new GcStats();

  //Build all the gauges and register them with the metrics registry.
  List<ContextAwareGauge<Double>> systemMetrics = buildGaugeList();
  systemMetrics.forEach(metric -> RootMetricContext.get().register(metric));
}
 
Example 8
Project: openjdk-jdk9   File: Utils.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * Returns value of VM option.
 *
 * @param name option's name
 * @return value of option or {@code null}, if option doesn't exist
 * @throws NullPointerException if name is null
 */
public static String getVMOption(String name) {
    String result;
    HotSpotDiagnosticMXBean diagnostic
            = ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
    result = diagnostic.getVMOption(name).getValue();
    return result;
}
 
Example 9
Project: arthas   File: VMOptionCommand.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public void complete(Completion completion) {
    HotSpotDiagnosticMXBean hotSpotDiagnosticMXBean = ManagementFactory
                    .getPlatformMXBean(HotSpotDiagnosticMXBean.class);
    List<VMOption> diagnosticOptions = hotSpotDiagnosticMXBean.getDiagnosticOptions();
    List<String> names = new ArrayList<String>(diagnosticOptions.size());
    for (VMOption option : diagnosticOptions) {
        names.add(option.getName());
    }
    CompletionUtils.complete(completion, names);
}
 
Example 10
Project: openjdk-jdk8u   File: TestNotificationListener.java    License: GNU General Public License v2.0 5 votes vote down vote up
public static void main(String[] args) throws Throwable {
    ObjectName objectName = new ObjectName(FlightRecorderMXBean.MXBEAN_NAME);
    ManagementFactory.getPlatformMBeanServer().addNotificationListener(objectName, listener, null, null);
    FlightRecorderMXBean bean = ManagementFactory.getPlatformMXBean(FlightRecorderMXBean.class);

    long recId = bean.newRecording();
    bean.startRecording(recId);

    latch.await();
    System.out.println("Completed successfully");
}
 
Example 11
Project: apm-agent-java   File: JvmMemoryMetrics.java    License: Apache License 2.0 5 votes vote down vote up
void bindTo(final MetricRegistry registry) {
    final MemoryMXBean platformMXBean = ManagementFactory.getPlatformMXBean(MemoryMXBean.class);
    registry.add("jvm.memory.heap.used", Labels.EMPTY, new DoubleSupplier() {
        @Override
        public double get() {
            return platformMXBean.getHeapMemoryUsage().getUsed();
        }
    });
    registry.add("jvm.memory.heap.committed", Labels.EMPTY, new DoubleSupplier() {
        @Override
        public double get() {
            return platformMXBean.getHeapMemoryUsage().getCommitted();
        }
    });
    registry.add("jvm.memory.heap.max", Labels.EMPTY, new DoubleSupplier() {
        @Override
        public double get() {
            return platformMXBean.getHeapMemoryUsage().getMax();
        }
    });
    registry.add("jvm.memory.non_heap.used", Labels.EMPTY, new DoubleSupplier() {
        @Override
        public double get() {
            return platformMXBean.getNonHeapMemoryUsage().getUsed();
        }
    });
    registry.add("jvm.memory.non_heap.committed", Labels.EMPTY, new DoubleSupplier() {
        @Override
        public double get() {
            return platformMXBean.getNonHeapMemoryUsage().getCommitted();
        }
    });
    registry.add("jvm.memory.non_heap.max", Labels.EMPTY, new DoubleSupplier() {
        @Override
        public double get() {
            return platformMXBean.getNonHeapMemoryUsage().getMax();
        }
    });
}
 
Example 12
Project: openjdk-jdk9   File: TestUseCompressedOopsErgoTools.java    License: GNU General Public License v2.0 5 votes vote down vote up
private static long getCompressedClassSpaceSize() {
  HotSpotDiagnosticMXBean diagnostic =
      ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);

  VMOption option = diagnostic.getVMOption("CompressedClassSpaceSize");
  return Long.parseLong(option.getValue());
}
 
Example 13
Project: Sentinel   File: SystemStatusListener.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public void run() {
    try {
        OperatingSystemMXBean osBean = ManagementFactory.getPlatformMXBean(OperatingSystemMXBean.class);
        currentLoad = osBean.getSystemLoadAverage();

        /*
         * Java Doc copied from {@link OperatingSystemMXBean#getSystemCpuLoad()}:</br>
         * Returns the "recent cpu usage" for the whole system. This value is a double in the [0.0,1.0] interval.
         * A value of 0.0 means that all CPUs were idle during the recent period of time observed, while a value
         * of 1.0 means that all CPUs were actively running 100% of the time during the recent period being
         * observed. All values between 0.0 and 1.0 are possible depending of the activities going on in the
         * system. If the system recent cpu usage is not available, the method returns a negative value.
         */
        double systemCpuUsage = osBean.getSystemCpuLoad();

        // calculate process cpu usage to support application running in container environment
        RuntimeMXBean runtimeBean = ManagementFactory.getPlatformMXBean(RuntimeMXBean.class);
        long newProcessCpuTime = osBean.getProcessCpuTime();
        long newProcessUpTime = runtimeBean.getUptime();
        int cpuCores = osBean.getAvailableProcessors();
        long processCpuTimeDiffInMs = TimeUnit.NANOSECONDS
                .toMillis(newProcessCpuTime - processCpuTime);
        long processUpTimeDiffInMs = newProcessUpTime - processUpTime;
        double processCpuUsage = (double) processCpuTimeDiffInMs / processUpTimeDiffInMs / cpuCores;
        processCpuTime = newProcessCpuTime;
        processUpTime = newProcessUpTime;

        currentCpuUsage = Math.max(processCpuUsage, systemCpuUsage);

        if (currentLoad > SystemRuleManager.getSystemLoadThreshold()) {
            writeSystemStatusLog();
        }
    } catch (Throwable e) {
        RecordLog.warn("[SystemStatusListener] Failed to get system metrics from JMX", e);
    }
}
 
Example 14
Project: openjdk-8   File: SetVMOption.java    License: GNU General Public License v2.0 4 votes vote down vote up
public static void main(String[] args) throws Exception {
    mbean =
        ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);

    VMOption option = findPrintGCDetailsOption();
    if (!option.getValue().equalsIgnoreCase(EXPECTED_VALUE)) {
        throw new RuntimeException("Unexpected value: " +
            option.getValue() + " expected: " + EXPECTED_VALUE);
    }
    if (option.getOrigin() != Origin.VM_CREATION) {
        throw new RuntimeException("Unexpected origin: " +
            option.getOrigin() + " expected: VM_CREATION");
    }
    if (!option.isWriteable()) {
        throw new RuntimeException("Expected " + PRINT_GC_DETAILS +
            " to be writeable");
    }

    // set VM option to a new value
    mbean.setVMOption(PRINT_GC_DETAILS, NEW_VALUE);

    option = findPrintGCDetailsOption();
    if (!option.getValue().equalsIgnoreCase(NEW_VALUE)) {
        throw new RuntimeException("Unexpected value: " +
            option.getValue() + " expected: " + NEW_VALUE);
    }
    if (option.getOrigin() != Origin.MANAGEMENT) {
        throw new RuntimeException("Unexpected origin: " +
            option.getOrigin() + " expected: MANAGEMENT");
    }
    VMOption o = mbean.getVMOption(PRINT_GC_DETAILS);
    if (!option.getValue().equals(o.getValue())) {
        throw new RuntimeException("Unmatched value: " +
            option.getValue() + " expected: " + o.getValue());
    }
    if (!option.getValue().equals(o.getValue())) {
        throw new RuntimeException("Unmatched value: " +
            option.getValue() + " expected: " + o.getValue());
    }
    if (option.getOrigin() != o.getOrigin()) {
        throw new RuntimeException("Unmatched origin: " +
            option.getOrigin() + " expected: " + o.getOrigin());
    }
    if (option.isWriteable() != o.isWriteable()) {
        throw new RuntimeException("Unmatched writeable: " +
            option.isWriteable() + " expected: " + o.isWriteable());
    }

    // check if ManagementServer is not writeable
    List<VMOption> options = mbean.getDiagnosticOptions();
    VMOption mgmtServerOption = null;
    for (VMOption o1 : options) {
        if (o1.getName().equals(MANAGEMENT_SERVER)) {
             mgmtServerOption = o1;
             break;
        }
    }
    if (mgmtServerOption != null) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " is not expected to be writeable");
    }
    mgmtServerOption = mbean.getVMOption(MANAGEMENT_SERVER);
    if (mgmtServerOption == null) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " should exist.");
    }
    if (mgmtServerOption.getOrigin() != Origin.DEFAULT) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " should have the default value.");
    }
    if (mgmtServerOption.isWriteable()) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " is not expected to be writeable");
    }
}
 
Example 15
Project: jdk8u-dev-jdk   File: SetVMOption.java    License: GNU General Public License v2.0 4 votes vote down vote up
public static void main(String[] args) throws Exception {
    mbean =
        ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);

    VMOption option = findPrintGCDetailsOption();
    if (!option.getValue().equalsIgnoreCase(EXPECTED_VALUE)) {
        throw new RuntimeException("Unexpected value: " +
            option.getValue() + " expected: " + EXPECTED_VALUE);
    }
    if (option.getOrigin() != Origin.VM_CREATION) {
        throw new RuntimeException("Unexpected origin: " +
            option.getOrigin() + " expected: VM_CREATION");
    }
    if (!option.isWriteable()) {
        throw new RuntimeException("Expected " + PRINT_GC_DETAILS +
            " to be writeable");
    }

    // set VM option to a new value
    mbean.setVMOption(PRINT_GC_DETAILS, NEW_VALUE);

    option = findPrintGCDetailsOption();
    if (!option.getValue().equalsIgnoreCase(NEW_VALUE)) {
        throw new RuntimeException("Unexpected value: " +
            option.getValue() + " expected: " + NEW_VALUE);
    }
    if (option.getOrigin() != Origin.MANAGEMENT) {
        throw new RuntimeException("Unexpected origin: " +
            option.getOrigin() + " expected: MANAGEMENT");
    }
    VMOption o = mbean.getVMOption(PRINT_GC_DETAILS);
    if (!option.getValue().equals(o.getValue())) {
        throw new RuntimeException("Unmatched value: " +
            option.getValue() + " expected: " + o.getValue());
    }
    if (!option.getValue().equals(o.getValue())) {
        throw new RuntimeException("Unmatched value: " +
            option.getValue() + " expected: " + o.getValue());
    }
    if (option.getOrigin() != o.getOrigin()) {
        throw new RuntimeException("Unmatched origin: " +
            option.getOrigin() + " expected: " + o.getOrigin());
    }
    if (option.isWriteable() != o.isWriteable()) {
        throw new RuntimeException("Unmatched writeable: " +
            option.isWriteable() + " expected: " + o.isWriteable());
    }

    // check if ManagementServer is not writeable
    List<VMOption> options = mbean.getDiagnosticOptions();
    VMOption mgmtServerOption = null;
    for (VMOption o1 : options) {
        if (o1.getName().equals(MANAGEMENT_SERVER)) {
             mgmtServerOption = o1;
             break;
        }
    }
    if (mgmtServerOption != null) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " is not expected to be writeable");
    }
    mgmtServerOption = mbean.getVMOption(MANAGEMENT_SERVER);
    if (mgmtServerOption == null) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " should exist.");
    }
    if (mgmtServerOption.getOrigin() != Origin.DEFAULT) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " should have the default value.");
    }
    if (mgmtServerOption.isWriteable()) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " is not expected to be writeable");
    }
}
 
Example 16
Project: TencentKona-8   File: SetVMOption.java    License: GNU General Public License v2.0 4 votes vote down vote up
public static void main(String[] args) throws Exception {
    mbean =
        ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);

    VMOption option = findPrintGCDetailsOption();
    if (!option.getValue().equalsIgnoreCase(EXPECTED_VALUE)) {
        throw new RuntimeException("Unexpected value: " +
            option.getValue() + " expected: " + EXPECTED_VALUE);
    }
    if (option.getOrigin() != Origin.VM_CREATION) {
        throw new RuntimeException("Unexpected origin: " +
            option.getOrigin() + " expected: VM_CREATION");
    }
    if (!option.isWriteable()) {
        throw new RuntimeException("Expected " + PRINT_GC_DETAILS +
            " to be writeable");
    }

    // set VM option to a new value
    mbean.setVMOption(PRINT_GC_DETAILS, NEW_VALUE);

    option = findPrintGCDetailsOption();
    if (!option.getValue().equalsIgnoreCase(NEW_VALUE)) {
        throw new RuntimeException("Unexpected value: " +
            option.getValue() + " expected: " + NEW_VALUE);
    }
    if (option.getOrigin() != Origin.MANAGEMENT) {
        throw new RuntimeException("Unexpected origin: " +
            option.getOrigin() + " expected: MANAGEMENT");
    }
    VMOption o = mbean.getVMOption(PRINT_GC_DETAILS);
    if (!option.getValue().equals(o.getValue())) {
        throw new RuntimeException("Unmatched value: " +
            option.getValue() + " expected: " + o.getValue());
    }
    if (!option.getValue().equals(o.getValue())) {
        throw new RuntimeException("Unmatched value: " +
            option.getValue() + " expected: " + o.getValue());
    }
    if (option.getOrigin() != o.getOrigin()) {
        throw new RuntimeException("Unmatched origin: " +
            option.getOrigin() + " expected: " + o.getOrigin());
    }
    if (option.isWriteable() != o.isWriteable()) {
        throw new RuntimeException("Unmatched writeable: " +
            option.isWriteable() + " expected: " + o.isWriteable());
    }

    // check if ManagementServer is not writeable
    List<VMOption> options = mbean.getDiagnosticOptions();
    VMOption mgmtServerOption = null;
    for (VMOption o1 : options) {
        if (o1.getName().equals(MANAGEMENT_SERVER)) {
             mgmtServerOption = o1;
             break;
        }
    }
    if (mgmtServerOption != null) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " is not expected to be writeable");
    }
    mgmtServerOption = mbean.getVMOption(MANAGEMENT_SERVER);
    if (mgmtServerOption == null) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " should exist.");
    }
    if (mgmtServerOption.getOrigin() != Origin.DEFAULT) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " should have the default value.");
    }
    if (mgmtServerOption.isWriteable()) {
        throw new RuntimeException(MANAGEMENT_SERVER +
            " is not expected to be writeable");
    }
}
 
Example 17
Project: openjdk-jdk8u-backup   File: DynamicVMOption.java    License: GNU General Public License v2.0 2 votes vote down vote up
/**
 * Creates an instance of DynamicVMOption.
 *
 * @param name the VM option name
 */
public DynamicVMOption(String name) {
    this.name = name;
    mxBean = ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
}
 
Example 18
Project: TencentKona-8   File: DynamicVMOption.java    License: GNU General Public License v2.0 2 votes vote down vote up
/**
 * Creates an instance of DynamicVMOption.
 *
 * @param name the VM option name
 */
public DynamicVMOption(String name) {
    this.name = name;
    mxBean = ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
}
 
Example 19
Project: openjdk-jdk9   File: DynamicVMOption.java    License: GNU General Public License v2.0 2 votes vote down vote up
/**
 * Creates an instance of DynamicVMOption.
 *
 * @param name the VM option name
 */
public DynamicVMOption(String name) {
    this.name = name;
    mxBean = ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
}
 
Example 20
Project: openjdk-jdk8u   File: DynamicVMOption.java    License: GNU General Public License v2.0 2 votes vote down vote up
/**
 * Creates an instance of DynamicVMOption.
 *
 * @param name the VM option name
 */
public DynamicVMOption(String name) {
    this.name = name;
    mxBean = ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
}