Examples of java.lang.management.RuntimeMXBean

java.lang.management.RuntimeMXBean
The management interface for the runtime system of the Java virtual machine.
A Java virtual machine has a single instance of the implementation class of this interface. This instance implementing this interface is an MXBean that can be obtained by calling the {@link ManagementFactory#getRuntimeMXBean} method orfrom the {@link ManagementFactory#getPlatformMBeanServer platform MBeanServer} method.
The ObjectName for uniquely identifying the MXBean for the runtime system within an MBeanServer is:
{@link ManagementFactory#RUNTIME_MXBEAN_NAME java.lang:type=Runtime}

This interface defines several convenient methods for accessing system properties about the Java virtual machine. @see JMX Specification. @see Ways to Access MXBeans @author Mandy Chung @version 1.14, 11/17/05 @since 1.5

   * dump and bring up resultant hprof in something like jprofiler which
   * allows you get 'deep size' on objects.
   * @param args main args
   */
  public static void main(String [] args) {
    RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
    LOG.info("vmName=" + runtime.getVmName() + ", vmVendor=" +
      runtime.getVmVendor() + ", vmVersion=" + runtime.getVmVersion());
    LOG.info("vmInputArguments=" + runtime.getInputArguments());
    MemStore memstore1 = new MemStore();
    // TODO: x32 vs x64
    long size = 0;
    final int count = 10000;
    byte [] fam = Bytes.toBytes("col");

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        {
            assertEquals("Cause message incorrect", "Permission denied: Update createNewQueue", e.getMessage());
        }


        // Ensure that calls to MBeans outside the Qpid domain are not impeded.
        final RuntimeMXBean runtimeBean = _jmx.getManagedObject(RuntimeMXBean.class, ManagementFactory.RUNTIME_MXBEAN_NAME);
        runtimeBean.getName();
        // PASS
    }

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    public Date getKernelBootTime() {
        return kernel.getBootTime();
    }


    public Stats getStats() {
        RuntimeMXBean runmxbean = ManagementFactory.getRuntimeMXBean();
        MemoryMXBean memmxbean = ManagementFactory.getMemoryMXBean();
        MemoryUsage memUsage = memmxbean.getHeapMemoryUsage();
        CountStatisticImpl upTime;
        BoundedRangeStatisticImpl heapSize;
        
        if (stats == null) {
            stats = new JVMStatsImpl();
            // setup UpTime CountStatistic
            upTime = stats.getUpTimeImpl();
            upTime.setStartTime(runmxbean.getStartTime());
            upTime.setCount(runmxbean.getUptime());
            // setup Heap BoundedRangeStatistic
            heapSize = stats.getHeapSizeImpl();
            heapSize.setStartTime(runmxbean.getStartTime());
            heapSize.setBounds(0, memUsage.getMax());
            heapSize.setCurrent(memUsage.getUsed());
            heapSize.setLowWaterMark(memUsage.getUsed());
            heapSize.setHighWaterMark(memUsage.getUsed());
        } else {
            // update UpTime CountStatistic
            upTime = stats.getUpTimeImpl();
            upTime.setCount(runmxbean.getUptime());
            // update Heap BoundedRangeStatistic
            heapSize = stats.getHeapSizeImpl();
            heapSize.setBounds(0, memUsage.getMax());
            heapSize.setCurrent(memUsage.getUsed());
        }

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   * dump and bring up resultant hprof in something like jprofiler which
   * allows you get 'deep size' on objects.
   * @param args main args
   */
  public static void main(String [] args) {
    RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
    LOG.info("vmName=" + runtime.getVmName() + ", vmVendor=" +
      runtime.getVmVendor() + ", vmVersion=" + runtime.getVmVersion());
    LOG.info("vmInputArguments=" + runtime.getInputArguments());
    MemStore memstore1 = new MemStore();
    // TODO: x32 vs x64
    long size = 0;
    final int count = 10000;
    byte [] fam = Bytes.toBytes("col");

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  // KeyValue, LruBlockCache, LruHashMap<K,V>, Put, HLogKey
  
  @BeforeClass
  public static void beforeClass() throws Exception {
    // Print detail on jvm so we know what is different should below test fail.
    RuntimeMXBean b = ManagementFactory.getRuntimeMXBean();
    LOG.info("name=" + b.getName()); 
    LOG.info("specname=" + b.getSpecName()); 
    LOG.info("specvendor=" + b.getSpecVendor()); 
    LOG.info("vmname=" + b.getVmName()); 
    LOG.info("vmversion=" + b.getVmVersion()); 
    LOG.info("vmvendor=" + b.getVmVendor()); 
    Map<String, String> p = b.getSystemProperties();
    LOG.info("properties=" + p);
  }

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public class JMXTest {


   @Test
   public void test() {


      final RuntimeMXBean runtime = createMock(RuntimeMXBean.class);


      expect(runtime.getUptime()).andReturn(69876000l);


      replay(runtime);


      Injector injector = Guice.createInjector(new AbstractModule() {
         @Override

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   * dump and bring up resultant hprof in something like jprofiler which
   * allows you get 'deep size' on objects.
   * @param args main args
   */
  public static void main(String [] args) {
    RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
    LOG.info("vmName=" + runtime.getVmName() + ", vmVendor=" +
      runtime.getVmVendor() + ", vmVersion=" + runtime.getVmVersion());
    LOG.info("vmInputArguments=" + runtime.getInputArguments());
    MemStore memstore1 = new MemStore();
    // TODO: x32 vs x64
    long size = 0;
    final int count = 10000;
    byte [] fam = Bytes.toBytes("col");

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   * allows you get 'deep size' on objects.
   * @param args
   * @throws InterruptedException
   */
  public static void main(String [] args) throws InterruptedException {
    RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
    LOG.info("vmName=" + runtime.getVmName() + ", vmVendor=" +
      runtime.getVmVendor() + ", vmVersion=" + runtime.getVmVersion());
    LOG.info("vmInputArguments=" + runtime.getInputArguments());
    Memcache memcache1 = new Memcache();
    // TODO: x32 vs x64
    long size = 0;
    final int count = 10000;
    for (int i = 0; i < count; i++) {

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          // LocalHBaseCluster.  It manages 'local' clusters.
          if (LocalHBaseCluster.isLocal(conf)) {
            LOG.warn("Not starting a distinct region server because " +
              "hbase.master is set to 'local' mode");
          } else {
            RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
            if (runtime != null) {
              LOG.info("vmInputArguments=" + runtime.getInputArguments());
            }
            Constructor<? extends HRegionServer> c =
              regionServerClass.getConstructor(HBaseConfiguration.class);
            HRegionServer hrs = c.newInstance(conf);
            Thread t = new Thread(hrs);

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   * Code to test sizes of BatchUpdate arrays.
   * @param args
   * @throws InterruptedException
   */
  public static void main(String[] args) throws InterruptedException {
    RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
    LOG.info("vmName=" + runtime.getVmName() + ", vmVendor="
        + runtime.getVmVendor() + ", vmVersion=" + runtime.getVmVersion());
    LOG.info("vmInputArguments=" + runtime.getInputArguments());
    final int count = 10000;
    BatchUpdate[] batch1 = new BatchUpdate[count];
    // TODO: x32 vs x64
    long size = 0;
    for (int i = 0; i < count; i++) {

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