@Override
        public void close() {
            try {
                writer.flush();
            } catch (final IOException e) {
                // ignore
            }
            CloseableUtil.closeQuietly(writer);

            if (isCommit) {
                try {
                    dictionaryManager.store(StemmerOverrideFile.this, newFile);
                } finally {
                    newFile.delete();