final Cache<String, CachedScript> oldCache = scriptCache;
        scriptCache = CacheBuilder.newBuilder()
                .maximumSize(scriptCacheSize)
                .removalListener((final RemovalNotification<String, CachedScript> notification) -> {
                    notification.getValue().close();
                })
                .build();
        if (oldCache != null) {
            oldCache.invalidateAll();