docs: public ExternalInvalidation filterExternalCacheFragment(String cacheName, ExternalInvalidation externalCacheFragment) {
  		InvalidationTableList invalidationTableList = getInvalidationTableList(cacheName);
  		try {
  			invalidationTableList.readWriteLock.readLock().lock();
  			return internalFilterExternalCacheFragment(cacheName, invalidationTableList, externalCacheFragment);
  		} finally {
  			invalidationTableList.readWriteLock.readLock().unlock();
  		}
  	}