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) {

            parser.parse(new InputSource(is));
        }
        parser.getWebConfig().ifPresent(c -> {
            logger.debug(c.toString());
        }).orElse(() -> fail());
        parser.getFileConfig().ifPresent(c -> {
            logger.debug(c.toString());
        }).orElse(() -> fail());
        LabelType[] labelTypes = parser.getLabelTypes();
        assertEquals(3, labelTypes.length);
    }

- LegacyObjectType (preserves existing deployments and older xl.json format)
- DeleteMarker (a versionId to capture the DELETE sequences implemented primarily for AWS spec compatibility)

A sample msgpack-JSON `xl.meta`, you can debug the content inside `xl.meta` using [xl-meta.go](https://github.com/minio/minio/tree/master/docs/debugging#decoding-metadata) program.

```json
{
  "Versions": [
    {
      "Type": 1,
      "V2Obj": {

            }
            queryMap.remove("labels.facet_filetype_others");
            queryMap.put("labels.facet_filetype_others", "filetype:others");
            if (logger.isDebugEnabled()) {
                logger.debug("updated query map: {}", queryMap);
            }
        }

        final FacetInfo facetInfo = ComponentUtil.getComponent("facetInfo");
        queryMap.values().stream().distinct().forEach(facetInfo::addQuery);
    }

                return LocalDateTime.ofInstant(instant, ZoneId.systemDefault());
            } catch (final DateTimeParseException e) {
                logger.debug("Invalid date format: {}", value, e);
            }
        }
        return DfTypeUtil.toLocalDateTime(value);
    }

    @SuppressWarnings("unchecked")
    @Override

            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;
    }

            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 -> {

                        log.debug("SecretKey destroy not fully supported: {}", e.getMessage());
                        failedToDestroy = true;
                        destroyException = e;
                    }
                }
                masterKey = null;

                log.debug("SecureCredentialStorage destroyed");

                    @Override
                    public XPathAPI load(final String key) {
                        if (logger.isDebugEnabled()) {
                            logger.debug("created XPathAPI by {}", key);
                        }
                        return new XPathAPI();
                    }
                });
    }

    /*
     * (non-Javadoc)
     *

            return asHtml(virtualHost(path_Login_NewpasswordJsp));
        } catch (final LoginFailureException lfe) {
            if (logger.isDebugEnabled()) {
                logger.debug("Login is failed.", lfe);
            }
            activityHelper.loginFailure(OptionalThing.of(new LocalUserCredential(username, password)));