* optional. If present, it contains the TLS version.
     */
    @Throws(IOException::class)
    constructor(rawSource: Source) {
      rawSource.use {
        val source = rawSource.buffer()
        val urlLine = source.readUtf8LineStrict()
        // Choice here is between failing with a correct RuntimeException
        // or mostly silently with an IOException

							<sources>
								<source>
									<location>${project.basedir}/modules</location>
								</source>
							</sources>
						</mapping>
						<!-- es/plugins -->
						<mapping>
							<directory>${packaging.fess.home.dir}/es/plugins</directory>
							<sources>
								<source>
									<location>${project.basedir}/plugins</location>
								</source>
							</sources>
						</mapping>

        try {
            final RESULT result = entityType.newInstance();
            result.setName(DfTypeUtil.toString(source.get(NAME)));
            result.setPassword(DfTypeUtil.toString(source.get(PASSWORD)));
            result.setGroups(toStringArray(source.get(GROUPS)));

    */
    protected Map<String, Object> toSource(final SearchLogEvent searchLogEvent) {
        final Map<String, Object> source = toLowerHyphen(searchLogEvent.toSource());
        source.put("_id", searchLogEvent.getId());
        // source.put("version_no", searchLogEvent.getVersionNo());
        source.put("event_type", searchLogEvent.getEventType());
        return source;
    }

    /**

          logger.log("<-- END HTTP (streaming)")
        } else {
          val source = responseBody.source()
          source.request(Long.MAX_VALUE) // Buffer the entire body.

          val totalMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNs)

          var buffer = source.buffer

          var gzippedLength: Long? = null

    }

    @Override
    protected <RESULT extends Group> RESULT createEntity(final Map<String, Object> source, final Class<? extends RESULT> entityType) {
        try {
            final RESULT result = entityType.newInstance();
            result.setName(DfTypeUtil.toString(source.get("name")));
            result.setAttributes(source.entrySet()
                    .stream()
                    .filter(e -> !"name".equals(e.getKey()))

        final Map<String, Object> source = obj instanceof Map ? (Map<String, Object>) obj : BeanUtil.copyBeanToNewMap(obj);
        final String id = (String) source.remove(fessConfig.getIndexFieldId());
        source.remove(fessConfig.getIndexFieldVersion());
        final Number seqNo = (Number) source.remove(fessConfig.getIndexFieldSeqNo());
        final Number primaryTerm = (Number) source.remove(fessConfig.getIndexFieldPrimaryTerm());

        source.put("aaa", "");
        source.put("bbb", "a");
        assertFalse(fessConfig.validateIndexRequiredFields(source));
        source.put("aaa", " ");
        source.put("bbb", "a");
        assertFalse(fessConfig.validateIndexRequiredFields(source));
        source.put("aaa", "a");
        source.put("bbb", "a");

- **XML Processing** (`org.codelibs.core.xml`) - XML DOM utilities, SAX parser helpers, and schema validation support
- **SQL Utilities** (`org.codelibs.core.sql`) - JDBC helper methods for result sets, prepared statements, and connection management

import java.util.concurrent.TimeUnit;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.core.timer.TimeoutManager;
import org.codelibs.core.timer.TimeoutTask;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.client.FesenClient;