@Override
      public void beforeDestroy2(EntryEvent event) throws CacheWriterException {
        // This method will get invoked when the region is populated
      }
Tests that the <code>CacheWriter</code> is called before an entry is
{@linkplain CacheWriter#beforeUpdate updated}.
geode-core/src/distributedTest/java/org/apache/geode/cache30/CacheWriterTestCase.java