}

    @Override
    public <K, V> IndexedCache<K, V> createCache(String cacheName, Serializer<K> keySerializer, Serializer<V> valueSerializer) {
        String cacheFileInMetaDataStore = CacheLayout.META_DATA.getKey() + "/" + cacheName;
        IndexedCacheParameters<K, V> parameters = IndexedCacheParameters.of(cacheFileInMetaDataStore, keySerializer, valueSerializer);
        if (cache.indexedCacheExists(parameters)) {

    @Override
    public <K, V> IndexedCache<K, V> createCache(String cacheName, Serializer<K> keySerializer, Serializer<V> valueSerializer) {
        String cacheFileInMetaDataStore = CacheLayout.META_DATA.getKey() + "/" + cacheName;
        final IndexedCache<K, V> indexedCache = cache.createIndexedCache(IndexedCacheParameters.of(cacheFileInMetaDataStore, keySerializer, valueSerializer));
        return new CacheLockingIndexedCache<>(indexedCache);
    }

            @Override
            <K, V> BTreePersistentIndexedCache<K, V> doCreateCache(File cacheFile, Serializer<K> keySerializer, Serializer<V> valueSerializer) {
                return backingCache
            }
        }
    }

    def "acquires lock on open and releases on close when lock mode is shared"() {