for (CharSource source : sources) {
        if (!source.isEmpty()) {
          return false;
        }
      }
      return true;
    }

    @Override
    public Optional<Long> lengthIfKnown() {
      long result = 0L;
      for (CharSource source : sources) {
        Optional<Long> lengthIfKnown = source.lengthIfKnown();
        if (!lengthIfKnown.isPresent()) {

      for (CharSource source : sources) {
        if (!source.isEmpty()) {
          return false;
        }
      }
      return true;
    }

    @Override
    public Optional<Long> lengthIfKnown() {
      long result = 0L;
      for (CharSource source : sources) {
        Optional<Long> lengthIfKnown = source.lengthIfKnown();
        if (!lengthIfKnown.isPresent()) {

        cloneInternal(auth, this);
        return auth;
    }

    /**
     * Clone the context
     *
     * @param to the target authenticator
     * @param from the source authenticator
     */
    public static void cloneInternal(Kerb5Authenticator to, Kerb5Authenticator from) {
        NtlmPasswordAuthenticator.cloneInternal(to, from);
        to.setUser(from.getUser());

   */
  @Throws(IOException::class)
  fun string(): String =
    source().use { source ->
      source.readString(charset = source.readBomAsCharset(charset()))
    }

  private fun charset() = contentType().charsetOrUtf8()

  override fun close() = source().closeQuietly()

  internal class BomAwareReader(
    private val source: BufferedSource,
    private val charset: Charset,
  ) : Reader() {

            result.setParameterName(DfTypeUtil.toString(source.get("parameter_name")));
            result.setPermissions(toStringArray(source.get("permissions")));
            result.setToken(DfTypeUtil.toString(source.get("token")));
            result.setUpdatedBy(DfTypeUtil.toString(source.get("updatedBy")));
            result.setUpdatedTime(DfTypeUtil.toLong(source.get("updatedTime")));
            return updateEntity(source, result);

            result.setQuery(DfTypeUtil.toString(source.get("query")));
            result.setTerm(DfTypeUtil.toString(source.get("term")));
            result.setUpdatedBy(DfTypeUtil.toString(source.get("updatedBy")));
            result.setUpdatedTime(DfTypeUtil.toLong(source.get("updatedTime")));
            result.setVirtualHost(DfTypeUtil.toString(source.get("virtualHost")));
            return updateEntity(source, result);

     */
    static class PathSource implements Source {
        @Nonnull
        protected final Path path;

        @Nonnull
        protected final String location;

        /**
         * Constructs a new PathSource with the specified path.
         *
         * @param path the filesystem path to the source content

import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.misc.Tuple3;
import org.codelibs.fess.crawler.entity.ResponseData;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;

        final SearchHits searchHits = getSearchHits(response);
        searchHits.forEach(hit -> {
            final Map<String, Object> source = hit.getSourceAsMap();
            final RESULT entity = createEntity(source, entityType);
            final DocMeta docMeta = ((EsAbstractEntity) entity).asDocMeta();
            docMeta.id(hit.getId());
            docMeta.version(hit.getVersion());

            result.setTerm(DfTypeUtil.toString(source.get("term")));
            result.setUpdatedBy(DfTypeUtil.toString(source.get("updatedBy")));
            result.setUpdatedTime(DfTypeUtil.toLong(source.get("updatedTime")));
            result.setVirtualHost(DfTypeUtil.toString(source.get("virtualHost")));
            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {