// Check if token is still valid by comparing absolute timestamps
            final long tokenExpiryTime = authResult.expiresOnDate().getTime(); // milliseconds since epoch
            final long currentTime = ComponentUtil.getSystemHelper().getCurrentTimeAsLong(); // milliseconds since epoch
            if (tokenExpiryTime < currentTime) {
                if (logger.isDebugEnabled()) {

         *
         * @return The date in milliseconds since epoch
         */
        @Override
        public long getDate() {
            return getLastModified();
        }

        /**
         * Returns the last modified date of the GCS object.
         * @return The last modified date in milliseconds since epoch.
         */
        @Override
        public long getLastModified() {

         *
         * @return The date in milliseconds since epoch
         */
        @Override
        public long getDate() {
            return getLastModified();
        }

        /**
         * Returns the last modified date of the S3 object.
         * @return The last modified date in milliseconds since epoch.
         */
        @Override
        public long getLastModified() {

         *
         * @return The date in milliseconds since epoch
         */
        @Override
        public long getDate() {
            return getLastModified();
        }

        /**
         * Returns the last modified date of the storage object.
         * @return The last modified date in milliseconds since epoch.
         */
        @Override
        public long getLastModified() {