a.append(c);
        return this;
      }
    };
  }

  /** Wrap a readable in a readable to defeat any type specific optimizations. */
  private static Readable wrapAsGenericReadable(Readable a) {
    return new Readable() {
      @Override
      public int read(CharBuffer cb) throws IOException {
        return a.read(cb);
      }
    };
  }

     * readable name.
     */
    @CanIgnoreReturnValue
    public ToStringHelper addValue(@Nullable Object value) {
      return addHolder(value);
    }

    /**
     * Adds an unnamed value to the formatted output.
     *
     * <p>It is strongly encouraged to use {@link #add(String, boolean)} instead and give value a
     * readable name.
     *

   *       {@link NullPointerException}.
   *   <li>Code that chains multiple predicates together (especially negations) may be more readable
   *       using this method. For example, {@code not(in(target))} is generally more readable than
   *       {@code not(target::contains)}.
   *   <li>This method's name conflicts with Kotlin's {@code in} operator.
   * </ul>
   *

      }
    }

    for (i in FLAGS.indices) { // Fill in holes with binary representation.
      if (FLAGS[i] == null) FLAGS[i] = BINARY[i]
    }
  }

  /**
   * Returns a human-readable representation of HTTP/2 frame headers.
   *
   * The format is:
   *
   * ```
   * direction streamID length type flags
   * ```
   *
   * Where direction is `<<` for inbound and `>>` for outbound.

import org.codelibs.fess.opensearch.log.cbean.ClickLogCB;
import org.codelibs.fess.opensearch.log.exentity.ClickLog;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

import org.codelibs.fess.opensearch.user.cbean.RoleCB;
import org.codelibs.fess.opensearch.user.exentity.Role;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

import org.codelibs.fess.opensearch.config.cbean.FailureUrlCB;
import org.codelibs.fess.opensearch.config.exentity.FailureUrl;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

import org.codelibs.fess.opensearch.config.cbean.RequestHeaderCB;
import org.codelibs.fess.opensearch.config.exentity.RequestHeader;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

import org.codelibs.fess.opensearch.config.cbean.ThumbnailQueueCB;
import org.codelibs.fess.opensearch.config.exentity.ThumbnailQueue;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

import org.codelibs.fess.opensearch.config.cbean.WebAuthenticationCB;
import org.codelibs.fess.opensearch.config.exentity.WebAuthentication;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;