}

            // Process objects (files)
            for (final S3Object s3Object : response.contents()) {
                final String objectKey = s3Object.key();
                // Skip directory markers (objects ending with /)
                if (!objectKey.endsWith("/")) {
                    final String fileName = getName(objectKey);
                    final ZonedDateTime lastModified =

            } catch (final IOException e) {
                throw new DictionaryException("Failed to write: " + line, e);
            }
        }

        /**
         * Commits any pending changes and marks the updater for final write.
         *
         * @return the committed mapping item, or null if no item was pending
         */
        public CharMappingItem commit() {
            isCommit = true;