@Override
      public void run2() throws CacheException {
        Region region = getRootRegion().getSubregion(regionName);
        for (int i = 0; i < 10; i++) {
          region.put(i, i);
        }
      }
Tests adding events to and removing events from an <code>EventTracker</code>.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/event/EventTrackerDUnitTest.java