public class ContentNotFoundException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    public ContentNotFoundException(final String parentUrl, final String url) {
        super("Not Found: " + url + " Parent: " + parentUrl, false, false);
    }

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

            if (totalCount != 0) {
                logger.info("Created {} thumbnail files.", totalCount);
            } else {
                logger.info("No new thumbnails found.");
            }
            exitCode = 0;
        } catch (final ContainerNotAvailableException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("ThumbnailGenerator is stopped.", e);

            ComponentUtil.getComponent(ScheduledJobBhv.class).selectByPK(scheduledJob.getId())
                    .ifPresent(e -> params.put(Constants.SCHEDULED_JOB, e)).orElse(() -> {
                        logger.warn("Job {} is not found.", scheduledJob.getId());
                    });
            return params;
        };
        findJobByUniqueOf(LaJobUnique.of(id)).ifPresent(job -> {
            if (!job.isUnscheduled()) {

public class FessUserNotFoundException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    public FessUserNotFoundException(final String username) {
        super("User is not found: " + username);
    }

        if (StringUtil.isBlank(form.queryId) || StringUtil.isBlank(url) || !thumbnailSupport) {
            // 404
            throw responseManager.new404("Thumbnail for " + form.docId + " is not found.");
        }

        final File thumbnailFile = thumbnailManager.getThumbnailFile(doc);
        if (thumbnailFile == null) {
            if (fessConfig.isThumbnailEnabled()) {
                thumbnailManager.offer(doc);

        final ScriptEngine scriptEngine = scriptEngineMap.get(name.toLowerCase(Locale.ROOT));
        if (scriptEngine != null) {
            return scriptEngine;
        }
        throw new ScriptEngineException(name + " is not found.");
    }

        final File parentFile = outputFile.getParentFile();
        if (!parentFile.exists()) {
            parentFile.mkdirs();
        }
        if (!parentFile.isDirectory()) {
            logger.warn("Not found: {}", parentFile.getAbsolutePath());
            return false;
        }

        return process(thumbnailId, responseData -> {