* </ul>
 *
 * <h2>Forwarding collections</h2>
 *
 * We provide implementations of collections that forward all method calls to a delegate collection
 * by default. Subclasses can override one or more methods to implement the decorator pattern. For
 * an example, see {@link ForwardingCollection}.
 *
 * <h2>Other</h2>
 *
 * <ul>
 *   <li>{@link EvictingQueue}

 * </ul>
 *
 * <h2>Forwarding collections</h2>
 *
 * We provide implementations of collections that forward all method calls to a delegate collection
 * by default. Subclasses can override one or more methods to implement the decorator pattern. For
 * an example, see {@link ForwardingCollection}.
 *
 * <h2>Other</h2>
 *
 * <ul>
 *   <li>{@link EvictingQueue}

     *
     * @return the root cause throwable, or null if none exists
     */
    public Throwable getRootCause() {
        return rootCause;
    }

    @Override
    public String toString() {
        if (rootCause != null) {
            final StringWriter sw = new StringWriter();
            final PrintWriter pw = new PrintWriter(sw);
            rootCause.printStackTrace(pw);

                classifier,
                artifactUri,
                why,
                resolved,
                error);
    }

    public ArtifactMetadata(Artifact af) {}

    @Override
    public String toString() {
        return groupId + ":" + artifactId + ":" + version;
    }

    public String toDomainString() {
        return groupId + ":" + artifactId;
    }

		return errServerNotInitialized
	}

	srvCfg, err := readConfigWithoutMigrate(GlobalContext, objAPI)
	if err != nil {
		return err
	}

	bootstrapTraceMsg("lookup the configuration")

	// Override any values from ENVs.
	lookupConfigs(srvCfg, objAPI)

	// hold the mutex lock before a new config is assigned.
	globalServerConfigMu.Lock()
	globalServerConfig = srvCfg
	globalServerConfigMu.Unlock()

    final int itemNumber;

    Item(T value, int groupNumber, int itemNumber) {
      this.value = value;
      this.groupNumber = groupNumber;
      this.itemNumber = itemNumber;
    }

    @Override
    public String toString() {
      return value + " [group " + (groupNumber + 1) + ", item " + (itemNumber + 1) + ']';
    }
  }

    //                                                                       Name Override
    //                                                                       =============
    @Override
    public String asTableDbName() {
        return "crawling_info";
    }

    @Override
    public String xgetAliasName() {
        return "crawling_info";
    }

    //                                                                       Name Override
    //                                                                       =============
    @Override
    public String asTableDbName() {
        return "crawling_info_param";
    }

    @Override
    public String xgetAliasName() {
        return "crawling_info_param";
    }

    //                                                                              ======
    @Override
    protected void setupHtmlData(final ActionRuntime runtime) {
        super.setupHtmlData(runtime);
        runtime.registerData("helpLink", systemHelper.getHelpLink(fessConfig.getOnlineHelpNameWebconfig()));
    }

    @Override
    protected String getActionRole() {
        return ROLE;
    }

    }
  }

  @Override
  public String toString() {
    return MoreObjects.toStringHelper(this).addValue(identifier).toString();
  }

  /** Simple logging handler for subscriber exceptions. */
  static final class LoggingHandler implements SubscriberExceptionHandler {
    static final LoggingHandler INSTANCE = new LoggingHandler();

    @Override