import java.io.InputStream;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.SerializeUtil;
import org.codelibs.core.lang.StringUtil;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import java.util.Locale;
import java.util.NoSuchElementException;

import org.codelibs.core.collection.MultiIterator;
import org.codelibs.core.exception.ClUnsupportedOperationException;
import org.codelibs.core.exception.ParseRuntimeException;
import org.codelibs.core.misc.LocaleUtil;

/**

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.lang;

import static org.codelibs.core.collection.CollectionsUtil.newArrayList;

import java.lang.reflect.Method;
import java.util.List;
import java.util.StringTokenizer;

/**
 * {@link String}用のユーティリティクラスです。
 *
 * @author higa
 * @author shinsuke

import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;

import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.ConditionQuery;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.es.log.allcommon;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import org.dbflute.exception.InvalidQueryRegisteredException;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.search.aggregations.AbstractAggregationBuilder;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.stream.Collectors;

import javax.annotation.Resource;

import org.apache.logging.log4j.LogManager;

        while (entries.hasNext()) {
            Map.Entry entry = (Map.Entry) entries.next();
            entry.setValue(Collections.unmodifiableList((List)
                    entry.getValue()));
        }
        return (headerFields = Collections.unmodifiableMap(map));
    }

    public Map getHeaderFields() {
        if (headerFields != null) return headerFields;
        try {

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

import javax.annotation.Resource;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.CoreLibConstants;

package org.codelibs.fess.crawler.transformer;

import java.io.ByteArrayInputStream;
import java.io.StringWriter;
import java.lang.reflect.Field;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.xml.transform.OutputKeys;
import javax.xml.transform.TransformerFactory;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;

import org.codelibs.core.io.CloseableUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.curl.CurlResponse;
import org.codelibs.fess.Constants;