@Override
      public void afterHavingCompacted() {
        region.getCache().getLogger().info("afterHavingCompacted");
        synchronized (region) {
          hasBeenNotified = true;
          region.notify();
        }
      }
fault in a value that has been copied forward by compaction
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/FaultingInJUnitTest.java