&& isValidCanonicalUrl(responseData.getUrl(), canonicalUrl)) {
            final Set<RequestData> childUrlSet = new HashSet<>();
            childUrlSet.add(RequestDataBuilder.newRequestData().get().url(canonicalUrl).build());
            logger.info("CANONICAL: {} -> {}", responseData.getUrl(), canonicalUrl);

            logger.debug("Crawling Access Exception at {}", urlQueue.getUrl(), e);
        } else if (e.isInfoEnabled()) {
            logger.info(e.getMessage());
        } else if (e.isWarnEnabled()) {
            logger.warn("Crawling Access Exception at " + urlQueue.getUrl(), e);
        } else if (e.isErrorEnabled()) {
            logger.error("Crawling Access Exception at " + urlQueue.getUrl(), e);
        }
    }

                    }
                    break;
                default:
                    logger.error("Unknown thumbnail result: {} -> {}", thumbnailId, responseData.getUrl());
                    break;
                }
            } catch (final Throwable t) {
                logger.warn("Failed to create thumbnail: {} -> {} ({}:{})", thumbnailId, responseData.getUrl(),

    }

    @Override
    public ResponseData execute(final RequestData request) {
        return switch (request.getMethod()) {
        case GET -> doGet(request.getUrl());
        case HEAD -> doHead(request.getUrl());
        case POST -> doPost(request.getUrl());
        default -> throw new CrawlerSystemException(request.getMethod() + " method is not supported.");
        };
    }

     * {@link RemoteRepository#getUrl()} root.
     *
     * @throws RuntimeException If PUT fails for any reason.
     */
    void put(@Nonnull Path source, @Nonnull URI relativeTarget);

    /**
     * PUTs the source byte array to target URI. The target MUST BE relative from the
     * {@link RemoteRepository#getUrl()} root.
     *
     * @throws RuntimeException If PUT fails for any reason.

        MavenProject project1 = getProject(pom1);

        System.out.println("\n\n");
        System.out.println("Parent SCM URL is: " + project0.getScm().getUrl());
        System.out.println("Child SCM URL is: " + project1.getScm().getUrl());
        System.out.println();
        System.out.println("Parent SCM connection is: " + project0.getScm().getConnection());

    /**
     * Gets the settings URL of this model source.
     *
     * @return The underlying settings URL, never {@code null}.
     * @deprecated instead use {@link #getUrl()}
     */
    @Deprecated
    public URL getSettingsUrl() {
        return getUrl();
    }

            assertEquals("application/octet-stream", responseData.getMimeType());
            assertNull(responseData.getResponseBody());
            assertNull(responseData.getMetaDataMap().get("label"));
        }
        try (final ResponseData responseData = storageClient.doHead("storage://fess/dir3/file4.txt")) {
            assertEquals("storage://fess/dir3/file4.txt", responseData.getUrl());

        final String url = urlQueue.getUrl();
        if (StringUtil.isBlank(url)) {
            if (logger.isDebugEnabled()) {
                logger.debug("URL is a blank: {}", url);
            }
            return false;
        }

        // check it in queue
        for (final UrlQueue<Long> urlInQueue : urlQueueList) {
            if (url.equals(urlInQueue.getUrl())) {

        buf.append("url:").append(getUrl(keyObj));
        buf.append('\t');
        buf.append("time:").append(FessFunctions.formatDate(new Date(time)));
        return buf;
    }

    protected String getUrl(final Object keyObj) {
        if (keyObj instanceof final UrlQueue<?> urlQueue) {
            return escapeValue(urlQueue.getUrl());
        }