String id = mirror.getId();
            if (id == null) {
                // TODO this should be illegal in settings.xml
                id = repository.getId();
            }

            log.debug("Using mirror: " + mirror.getUrl() + " (id: " + id + ")");

            repository = artifactRepositoryFactory.createArtifactRepository(

                } catch (final MaxLengthExceededException e) {
                    throw e;
                } catch (final Exception e) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Failed to access to {}", request.getUrl(), e);
                    }

                    if (listener != null) {
                        listener.onException(this, request, count, e);
                    }

        try {
            final StreamResponse response = viewHelper.asContentResponse(doc);
            if (response.getHttpStatus().orElse(200) == 404) {
                logger.debug("Document not found: url={}", targetUrl);
                saveError(messages -> messages.addErrorsNotFoundOnFileSystem(GLOBAL, targetUrl));
                return redirect(ErrorAction.class);
            }

        } catch (final ResultOffsetExceededException e) {
            if (logger.isDebugEnabled()) {
                logger.debug(e.getMessage(), e);
            }
            throwValidationErrorApi(messages -> messages.addErrorsResultSizeExceeded(GLOBAL));
        }

        return null;
    }

    // GET /api/admin/storage/download/{id}/

// Package ioutil implements some I/O utility functions which are not covered
// by the standard library.
package ioutil

import (
	"context"
	"errors"
	"io"
	"os"
	"runtime/debug"
	"time"

	"github.com/dustin/go-humanize"
	"github.com/minio/minio/internal/bpool"
	"github.com/minio/minio/internal/disk"
)

// Block sizes constant.
const (

     * Sets up the cache with configured size and expiration settings.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }
        fessConfig = ComponentUtil.getFessConfig();
        cache = CacheBuilder.newBuilder()

    // from the plugin.xml inside a plugin.

    @Override
    public Set<Plugin> getPluginsBoundByDefaultToAllLifecycles(String packaging) {
        if (logger.isDebugEnabled()) {
            logger.debug("Looking up lifecycle mappings for packaging " + packaging + " from "
                    + Thread.currentThread().getContextClassLoader());
        }

                        logger.info("Excluded URL from failures: {}", urlValue);
                    }
                });
            }

            if (logger.isDebugEnabled()) {
                logger.debug("Crawling {}", urlsStr);
            }

            crawler.setBackground(true);
            crawler.setThreadPriority(crawlerPriority);

            crawlerList.add(crawler);

	// Should only be modified before any calls are made.
	MaxErrResponseSize int64

	// Avoid metrics update if set to true
	NoMetrics bool

	// TraceOutput will print debug information on non-200 calls if set.
	TraceOutput io.Writer // Debug trace output

	httpClient *http.Client
	url        *url.URL
	auth       func() string

	sync.RWMutex // mutex for lastErr
	lastErr      error
	lastErrTime  time.Time

        final String authorities = fessConfig.getFesenHttpSslCertificateAuthorities();
        if (StringUtil.isNotBlank(authorities)) {
            if (logger.isDebugEnabled()) {
                logger.debug("Loading certificate_authorities: path={}", authorities);
            }
            try (final InputStream in = new FileInputStream(authorities)) {