} else {
                errorName = t.getClass().getCanonicalName();
            }
            final FailureUrl failureUrl = storeFailureUrl(crawlerContext, urlQueue, errorName, t);
            if (failureUrl != null) {
                failureUrlId = failureUrl.getId();
            }
        } catch (final ContainerNotAvailableException e) {
            if (logger.isDebugEnabled()) {

online.help.base.link=https://fess.codelibs.org/{lang}/{version}/admin/
online.help.installation=https://fess.codelibs.org/{lang}/{version}/install/install.html
online.help.eol=https://fess.codelibs.org/{lang}/eol.html
online.help.name.failureurl=failureurl
online.help.name.elevateword=elevateword
online.help.name.reqheader=reqheader
online.help.name.dict.synonym=synonym
online.help.name.dict=dict
online.help.name.dict.kuromoji=kuromoji

    /** The key of the configuration. e.g. https://fess.codelibs.org/{lang}/eol.html */
    String ONLINE_HELP_EOL = "online.help.eol";

    /** The key of the configuration. e.g. failureurl */
    String ONLINE_HELP_NAME_FAILUREURL = "online.help.name.failureurl";

    /** The key of the configuration. e.g. elevateword */
    String ONLINE_HELP_NAME_ELEVATEWORD = "online.help.name.elevateword";