* @throws DictionaryException if the file was updated concurrently.
         */
        public SynonymItem write(final SynonymItem oldItem) {
            try {
                if (item == null || item.getId() != oldItem.getId() || !item.isUpdated()) {
                    writer.write(oldItem.toLineString());
                    writer.write(Constants.LINE_SEPARATOR);
                    return oldItem;
                }

            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL));
            return null;
        });

        return asJson(new ApiUpdateResponse().id(duplicateHost.getId()).created(true).status(Status.OK).result());
    }

    // PUT /api/admin/duplicatehost/setting
    /**
     * Updates an existing duplicate host setting.
     *

            });
            if (logger.isDebugEnabled()) {
                cachedPathMappingList.forEach(e -> {
                    logger.debug("path mapping: {}: {} -> {}", e.getId(), e.getRegex(), e.getReplacement());
                });
            }
            return cachedPathMappingList.size();
        } catch (final ComponentNotFoundException e) {
            if (logger.isDebugEnabled()) {

     * @param stopwordsItem The stopword item to store.
     */
    public void store(final String dictId, final StopwordsItem stopwordsItem) {
        getStopwordsFile(dictId).ifPresent(file -> {
            if (stopwordsItem.getId() == 0) {
                file.insert(stopwordsItem);
            } else {
                file.update(stopwordsItem);
            }
        });
    }

    /**

     * @param synonymItem The synonym item to store.
     */
    public void store(final String dictId, final SynonymItem synonymItem) {
        getSynonymFile(dictId).ifPresent(file -> {
            if (synonymItem.getId() == 0) {
                file.insert(synonymItem);
            } else {
                file.update(synonymItem);
            }
        });
    }

    /**

    @Test
    public void test_timezoneInformation() {
        TimeZone defaultTz = TimeZone.getDefault();
        assertNotNull(defaultTz);
        assertNotNull(defaultTz.getID());
        assertTrue(defaultTz.getID().length() > 0);

        // Central timezone should match default
        assertEquals(defaultTz, FessUserTimeZoneProcessProvider.centralTimeZone);
    }

            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL));
            return null;
        });
        return asJson(new ApiUpdateResponse().id(accessToken.getId()).created(true).status(Status.OK).result());
    }

    // PUT /api/admin/accesstoken/setting
    /**
     * Updates an existing access token setting.
     *

            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL));
            return null;
        });

        return asJson(new ApiUpdateResponse().id(reqHeader.getId()).created(true).status(Status.OK).result());
    }

    /**
     * Updates an existing request header setting.
     *
     * @param body the request header data to update

            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL));
            return null;
        });

        return asJson(new ApiUpdateResponse().id(webAuth.getId()).created(true).status(Status.OK).result());
    }

    /**
     * Updates an existing web authentication setting.
     *
     * @param body the web authentication data to update

        try {
            Element chapter = parent.getOwnerDocument().createElement("chapter");
            parent.appendChild(chapter);
            chapter.setAttribute("id", classDoc.getId());
            descriptionRenderer.renderTo(classDoc, chapter);
            merge(classDoc, chapter);
        } finally {
            listener.finish();
        }
    }