@Test
  public void testGetMBean() {
    managementTestRule.createMember(memberVMs[0]);
    managementTestRule.createMember(memberVMs[1]);
    managementTestRule.createMember(memberVMs[2]);

    managementTestRule.createManager(managerVM, false);

    managementTestRule.startManager(managerVM);

    verifyGetMBeanInstance(managerVM);
  }
Creates and starts a managerVM. Multiple Managers
geode-core/src/distributedTest/java/org/apache/geode/management/CacheManagementDUnitTest.java