return Collections.emptyList();
            }
        };
        ComponentUtil.register(webAuthenticationService, WebAuthenticationService.class.getCanonicalName());
        RequestHeaderService requestHeaderService = new RequestHeaderService() {
            @Override
            public List<RequestHeader> getRequestHeaderList(final String webConfigId) {

            String errorName;
            final Throwable cause = t.getCause();
            if (cause != null) {
                errorName = cause.getClass().getCanonicalName();
            } else {
                errorName = t.getClass().getCanonicalName();
            }
            final FailureUrl failureUrl = storeFailureUrl(crawlerContext, urlQueue, errorName, t);
            if (failureUrl != null) {

            try {
                client.close();
            } catch (final Exception e) {
                logger.warn("Faild to close {}.", client.getClass().getCanonicalName(), e);
            }
        });
    }

        try {
            parser.parseArgument(args);
        } catch (final CmdLineException e) {
            System.err.println(e.getMessage());
            System.err.println("java " + ThumbnailGenerator.class.getCanonicalName() + " [options...] arguments...");
            parser.printUsage(System.err);
            return;
        }

        if (logger.isDebugEnabled()) {
            try {

    public static Slf4jConfiguration getConfiguration(ILoggerFactory loggerFactory) {
        String slf4jBinding = loggerFactory.getClass().getCanonicalName();

        try {
            Enumeration<URL> resources =
                    Slf4jConfigurationFactory.class.getClassLoader().getResources(RESOURCE);

            while (resources.hasMoreElements()) {

                }
            } catch (final Throwable t) {
                logger.warn("Failed to create thumbnail: {} -> {} ({}:{})", thumbnailId, responseData.getUrl(),
                        t.getClass().getCanonicalName(), t.getMessage());
                if (logger.isDebugEnabled()) {
                    logger.debug("Details for failed thumbnail creation.", t);
                }
            } finally {