@Override
    public void afterRegionCreate(RegionEvent event) {
      InternalRegion region = (InternalRegion) event.getRegion();
      String regionPath = event.getRegion().getFullPath();
      if (regionPath.contains(SEPARATOR + "testRegion" + SEPARATOR + "testSubRegion")
          || regionPath.contains(SEPARATOR + "testRegion")) {
        afterRegionCreateCount.incrementAndGet();
        errorCollector.checkThat(region.isInitialized(), is(true));
      }
    }
AFTER_REGION_CREATE was being sent before region initialization (bug 33726). Test to verify that
that is no longer the case.

<p>
TRAC #33726: afterRegionCreate event delivered before region initialization occurs
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/AfterRegionCreateNotBeforeRegionInitRegressionTest.java