@Test(expected = InstanceNotFoundException.class)
  public void testCanUnregister() throws Exception {
    TestBean testBean = new TestBean("1");
    ManagementRegistrar.register(objectName, testBean);
    ManagementRegistrar.unregister(objectName);
    ManagementRegistrar.normalizeAndRunQueuedCommands();

    mBeanServer.getAttribute(new ObjectName(objectName), "Name");
  }
  @Test
  public void testCanRegister() throws Exception {
    final int iterations = 100000;
    final List<TestBean> beans = new ArrayList<TestBean>(iterations);

    for (int i = 0; i < iterations; i++) {
      if (i > 0) ManagementRegistrar.unregister(objectName);

      TestBean testBean = new TestBean("#" + i);
      beans.add(testBean); // holding a hard reference to ensure the instances are not GCed.
      ManagementRegistrar.register(objectName, testBean);
    }

    ManagementRegistrar.normalizeAndRunQueuedCommands();
    assertEquals(
        beans.get(beans.size() - 1).getName(),
        mBeanServer.getAttribute(new ObjectName(objectName), "Name"));
  }
 @After
 public void tearDown() throws Exception {
   ManagementRegistrar.unregister(objectName);
   ManagementRegistrar.normalizeAndRunQueuedCommands();
 }