@Override
    public void handleNotification(final Notification notification, final Object handback) {
      assertThat(notification).isNotNull();

      notifications.add(notification);

      // TODO: add real assertions for Notifications
      // LogWriterUtils.getLogWriter().info("<ExpectedString> Distributed System Notifications" +
      // notification + "</ExpectedString> ");
    }
Registered in manager VM. Listens to notifications from a DistributedSystemMXBean.
geode-core/src/distributedTest/java/org/apache/geode/management/RegionManagementDUnitTest.java