}
        if (badWord.contains(" ") || badWord.contains("  ")) {
            return "badWord contains space.";
        }
        return null;
    }

    protected static void updateDefaultBadwords() {
        if (defaultWords != null) {
            return;
        }

        final List<String> list = new ArrayList<>();
        try (BufferedReader br = new BufferedReader(new InputStreamReader(

        this.servers = (servers != null) ? servers : new ArrayList<>();
        this.proxies = (proxies != null) ? proxies : new ArrayList<>();
        this.problems = (problems != null) ? problems : new ArrayList<>();
    }

    @Override
    public Server getServer() {
        return servers.isEmpty() ? null : servers.get(0);
    }

    @Override
    public List<Server> getServers() {

        if (synonymLoader.getSynonymMap() == null) {
            if (settings.getAsList("synonyms", null) != null) {
                logger.warn("synonyms values are empty.");
            } else if (settings.get("synonyms_path") != null) {
                logger.warn("synonyms_path[{}] is empty.", settings.get("synonyms_path"));
            } else {

    // Parse the address, and make sure the length/version is correct.
    Scope scope = parseScope ? new Scope() : null;
    byte[] addr = ipStringToBytes(ipString, scope);
    if (addr == null || addr.length != expectBytes) {
      return null;
    }

    return bytesToInetAddress(addr, (scope != null) ? scope.scope : null);
  }

  /**

# o dbfluteBeansFileName: (NotRequired - Default 'dbfluteBeans.xml')
# o dbfluteBeansDataSourceName: (NotRequired - Default 'dataSource')
# o dbfluteBeansDefaultAttribute: (NotRequired - Default null)
# o isDBFluteBeansGeneratedAsJavaConfig (NotRequired - Default true since 1.1)
#
# {Java} Seasar Only:
# o dbfluteDiconNamespace: (NotRequired - Default 'dbflute')

        try {
            final Class<?> clazz = Class.forName("org.apache.commons.httpclient.MultiThreadedHttpConnectionManager");
            final Method method = clazz.getMethod("shutdownAll", (Class<?>[]) null);
            method.invoke(null, (Object[]) null);
        } catch (final ClassNotFoundException e) {
            // ignore
        } catch (final Exception e) {
            logger.warn("Could not shutdown Commons HttpClient.", e);
        }

        return true;
    }

    public Set<String> getMatchedLabelValueSet(final String path) {
        if (labelTypePatternList == null) {
            synchronized (this) {
                if (labelTypePatternList == null) {
                    buildLabelTypePatternList(ComponentUtil.getComponent(LabelTypeService.class).getLabelTypeList());
                }
            }
        }

        if (labelTypePatternList.isEmpty()) {

        doUpdate(entity, null);
    }

    public void insertOrUpdate(ClickLog entity) {
        doInsertOrUpdate(entity, null, null);
    }

    public void insertOrUpdate(ClickLog entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsertOrUpdate(entity, null, null);
    }

    public void delete(ClickLog entity) {

        doUpdate(entity, null);
    }

    public void insertOrUpdate(Group entity) {
        doInsertOrUpdate(entity, null, null);
    }

    public void insertOrUpdate(Group entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsertOrUpdate(entity, null, null);
    }

    public void delete(Group entity) {

        doUpdate(entity, null);
    }

    public void insertOrUpdate(AccessToken entity) {
        doInsertOrUpdate(entity, null, null);
    }

    public void insertOrUpdate(AccessToken entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsertOrUpdate(entity, null, null);
    }

    public void delete(AccessToken entity) {