}
    }

    /**
     * Builds a failure message from a bulk response containing failed operations.
     *
     * @param bulkResponse The bulk response containing potential failures.
     * @param ignoreAlreadyExists Whether to ignore already existing document failures.
     * @return The formatted failure message, or empty string if no failures to report.
     */

   *    has since been closed by the server.
   *  * A client timeout (HTTP 408).
   *  * A authorization challenge (HTTP 401 and 407) that is satisfied by the [Authenticator].
   *  * A retryable server failure (HTTP 503 with a `Retry-After: 0` response header).
   *  * A misdirected request (HTTP 421) on a coalesced connection.
   */
  open fun isOneShot(): Boolean = false

  /**

        List<E> resultsForStrategy = new ArrayList<>();
        strategy.forEach(spliteratorSupplier.get(), resultsForStrategy::add);

        // TODO(cpovirk): better failure messages
        if ((characteristics & Spliterator.NONNULL) != 0) {
          assertFalse(resultsForStrategy.contains(null));
        }
        if ((characteristics & Spliterator.SORTED) != 0) {

        List<E> resultsForStrategy = new ArrayList<>();
        strategy.forEach(spliteratorSupplier.get(), resultsForStrategy::add);

        // TODO(cpovirk): better failure messages
        if ((characteristics & Spliterator.NONNULL) != 0) {
          assertFalse(resultsForStrategy.contains(null));
        }
        if ((characteristics & Spliterator.SORTED) != 0) {

        if (store.hasResults()) {
            store.forEachResult { result ->
                if (result.innerResult.resultType == TestResult.ResultType.FAILURE) {
                    containingFailures = true
                }
            }
        }
        return containingFailures
    }

    /**

                                logger.warn("Authentication Failure: {} - Reason: {}", errors.stream().collect(Collectors.joining(", ")),
                                        auth.getLastErrorReason());
                            } else {
                                logger.warn("Authentication Failure: {}", errors.stream().collect(Collectors.joining(", ")));
                            }

    public ChannelInfo selectChannel(CommonServerMessageBlock message) {
        return loadBalancer.selectChannel(message);
    }

    /**
     * Handle channel failure
     *
     * @param channel failed channel
     * @param error error that caused failure
     */
    public void handleChannelFailure(ChannelInfo channel, Exception error) {
        failover.handleFailure(channel, error);
    }

    /**

                alternativeChannel.getTransport().send(op);
            } catch (Exception e) {
                log.error("Failed to redistribute operation", e);
                // Notify waiting threads of failure
                op.notifyError(e);
            }
        }
    }
    
    private void scheduleRecovery(ChannelInfo channel, FailoverState state) {
        state.incrementRetry();
        

		writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue, err)
		return
	}

	// If authentication failed, return the error message to the user.
	if res.Failure != nil {
		writeSTSErrorResponse(ctx, w, ErrSTSUpstreamError, errors.New(res.Failure.Reason))
		return
	}

	// It is required that parent user be set.
	if res.Success.User == "" {

             * global profile manager which is required to build a POM like a CLI invocation does. Failure to consider
             * the activated profiles can cause repo declarations to be lost which in turn will result in artifact
             * resolution failures, in particular when using the enhanced local repo which guards access to local files
             * based on the configured remote repos.