if (title == null) {
            return StringUtil.EMPTY; // empty
        }

        final int[] spaceChars = getSpaceChars();
        try (final Reader reader = new StringReader(title)) {
            return TextUtil.normalizeText(reader).initialCapacity(title.length()).spaceChars(spaceChars).execute();
        } catch (final IOException e) {
            return StringUtil.EMPTY; // empty
        }
    }

    /**

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.response.StreamResponse;

            if (StringUtil.isNotBlank(getIncludedDocPaths())) {
                final List<Pattern> pathPatterList = new ArrayList<>();
                final String[] paths = getIncludedDocPaths().split("[\r\n]");
                for (final String u : paths) {
                    final String v = systemHelper.normalizeConfigPath(u);
                    if (StringUtil.isNotBlank(v)) {

import java.util.Map;
import java.util.function.BiFunction;
import java.util.regex.Matcher;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.opensearch.config.exbhv.PathMappingBhv;
import org.codelibs.fess.opensearch.config.exentity.PathMapping;
import org.codelibs.fess.util.ComponentUtil;

import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.net.URLCodec;
import org.codelibs.core.lang.StringUtil;
import org.lastaflute.web.servlet.filter.LastaPrepareFilter;

import jakarta.servlet.Filter;
import jakarta.servlet.FilterChain;
import jakarta.servlet.FilterConfig;
import jakarta.servlet.ServletContext;

    public void addSearchFieldLogValue(final String name, final String value) {
        if (StringUtil.isNotBlank(name) && StringUtil.isNotBlank(value)) {
            searchFieldLogList.add(new Pair<>(name, value));
        }
    }

    public void addRequestHeaderValue(final String name, final String value) {
        if (StringUtil.isNotBlank(name) && StringUtil.isNotBlank(value)) {
            headerList.add(new Pair<>(name, value));
        }

        if (StringUtil.isNotBlank(pager.queryId)) {
            cb.query().setQueryId_Term(pager.queryId);
        }
        if (StringUtil.isNotBlank(pager.userSessionId)) {
            cb.query().setUserSessionId_Term(pager.userSessionId);
        }
        if (StringUtil.isNotBlank(pager.accessType)) {
            cb.query().setAccessType_Term(pager.accessType);

                            .filter(StringUtil::isNotBlank)
                            .distinct()
                            .collect(Collectors.joining("\n")));
                    form.virtualHosts = stream(entity.getVirtualHosts())
                            .get(stream -> stream.filter(StringUtil::isNotBlank).map(String::trim).collect(Collectors.joining("\n")));

        if (StringUtil.isNotBlank(fileConfigPager.name)) {
            cb.query().setName_Wildcard(wrapQuery(fileConfigPager.name));
        }
        if (StringUtil.isNotBlank(fileConfigPager.paths)) {
            cb.query().setPaths_Wildcard(wrapQuery(fileConfigPager.paths));
        }
        if (StringUtil.isNotBlank(fileConfigPager.description)) {

            try {
                if (StringUtil.isBlank(endpoint)) {
                    throw new IOException("endpoint is blank.");
                }
                final Builder builder = MinioClient.builder().endpoint(endpoint);
                if (StringUtil.isNotBlank(accessKey) && StringUtil.isNotBlank(secretKey)) {
                    builder.credentials(accessKey, secretKey);