return stacktraceString.get();
        }

        final String errorCode = UUID.randomUUID().toString();
        if (logger.isDebugEnabled()) {
            logger.debug("[{}] {}", errorCode, stacktraceString.get().replace("\n", "\\n"));
        } else {
            logger.warn("[{}] {}", errorCode, cause.getMessage());
        }
        return "error_code:" + errorCode;
    }

        byte[] domain = new byte[0];
        if ( domainStr != null ) {
            try {
                domain = domainStr.getBytes(UNI_ENCODING);
            }
            catch ( IOException ex ) {
                log.debug("Failed to get domain bytes", ex);
            }
        }
        int domainLength = domain.length;
        byte[] server = new byte[0];
        String host = tc.getNameServiceClient().getLocalHost().getHostName();

            try {
                return requestManager.getParameter(name).filter(StringUtil::isNotBlank).map(LocaleUtils::toLocale);
            } catch (final Exception e) {
                logger.debug("Failed to parse a value of {}.", name, e);
            }
        }
        return OptionalObject.empty();
    }

    @Override
    public OptionalThing<Locale> getRequestedLocale(final RequestManager requestManager) {

    public QueryBuilder execute(final QueryContext context, final Query query, final float boost) {
        if (query instanceof final WildcardQuery wildcardQuery) {
            if (logger.isDebugEnabled()) {
                logger.debug("{}:{}", query, boost);
            }
            return convertWildcardQuery(context, wildcardQuery, boost);
        }

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">

	<Properties>
		<Property name="domain.name" value="${sys:fess.log.name:-fess}" />
		<Property name="log.level" value="${sys:fess.log.level:-debug}" />
		<Property name="root.log.level" value="${sys:fess.log.level:-info}" />
		<Property name="log.pattern" value="%d [%t] %-5p %msg%n" />
		<Property name="log.file.basedir" value="${sys:fess.log.path:-target/logs}" />

org.checkerframework.common.reflection
org.checkerframework.common.reflection.qual
org.checkerframework.common.subtyping
org.checkerframework.common.util
org.checkerframework.common.util.count
org.checkerframework.common.util.debug
org.checkerframework.common.util.report
org.checkerframework.common.util.report.qual
org.checkerframework.common.value
org.checkerframework.common.value.qual
org.checkerframework.common.value.util

                }
            } else if (logger.isDebugEnabled()) {
                if (!client.existsIndex(oldIndex)) {
                    logger.debug("{} does not exist.", oldIndex);
                }
                if (!client.existsIndex(index)) {
                    logger.debug("{} does not exist.", index);
                }
            }
        }
        for (final String index : crawlerIndices) {

            if (logger.isDebugEnabled()) {
                logger.debug(e.getMessage(), e);
            }
            saveError(e.getMessageCode());
            return redirectToRoot();
        } catch (final ResultOffsetExceededException e) {
            if (logger.isDebugEnabled()) {
                logger.debug(e.getMessage(), e);
            }
            saveError(messages -> {

                throw new CrawlingAccessException("Bucket " + bucketName + " is not found.", e);
            case "NoSuchKey", "NoSuchObject":
                if (logger.isDebugEnabled()) {
                    logger.debug("{} is not an object.", path);
                }
                break;
            default:
                logger.warn(path + " is not an object.", e);
                break;
            }

                return false;
            }
            this.response = r;
        }
        catch ( SmbException e ) {
            if ( e.getNtStatus() == NtStatus.NT_STATUS_NO_MORE_FILES ) {
                log.debug("End of listing", e);
                return false;
            }
            throw e;
        }
        return true;
    }


    /**
     * {@inheritDoc}
     *