public void setSerializedOldValue(byte[] serializedOldValue) {
    final Object ov;
    if (serializedOldValue != null) {
      ov = CachedDeserializableFactory.create(serializedOldValue, getRegion().getCache());
    } else {
      ov = null;
    }
    retainAndSetOldValue(ov);
    oldValueBytes = serializedOldValue;
  }
@param isSynced true if RegionEntry currently under synchronization
geode-core/src/main/java/org/apache/geode/internal/cache/EntryEventImpl.java