@Override
    public void afterDestroy(EntryEvent<K, V> e) {
      if (e.isOriginRemote()) {
        synchronized (this) {
          ++aDestroyCalls;
          lastEvent = e;
        }
      }
    }
An <code>LongWrapper</code> that is <code>DataSerializable</code>.
geode-dunit/src/main/java/org/apache/geode/cache30/MultiVMRegionTestCase.java