static int getCachedId(Object value, DataEnumeratorEx<?> owner) {
    synchronized (ourEnumerationCache) {
      final Integer cachedId = ourEnumerationCache.get(sharedKey(value, owner));
      if (cachedId != null) return cachedId.intValue();
    }
    return DataEnumeratorEx.NULL_ID;
  }
static int getCachedId(Object value, DataEnumeratorEx<?> owner)