private MemberMXBean awaitMemberMXBeanProxy(final DistributedMember member) {
    SystemManagementService service = managementTestRule.getSystemManagementService();
    ObjectName objectName = service.getMemberMBeanName(member);
    GeodeAwaitility.await()
        .untilAsserted(
            () -> assertThat(service.getMBeanProxy(objectName, MemberMXBean.class)).isNotNull());
    return service.getMBeanProxy(objectName, MemberMXBean.class);
  }
Compact a disk store from managerVM VM
geode-core/src/distributedTest/java/org/apache/geode/management/DiskManagementDUnitTest.java