return OptionalEntity.of(permissionSet);
            }).orElseThrow(() -> new InvalidAccessTokenException("invalid_token", "Invalid token: " + token));
        }
        return OptionalEntity.empty();
    }

                    factory.setFeature(Constants.FEATURE_EXTERNAL_PARAMETER_ENTITIES, false);
                    factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, StringUtil.EMPTY);
                    factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_SCHEMA, StringUtil.EMPTY);
                    final DocumentBuilder builder = factory.newDocumentBuilder();
                    final Document document = builder.parse(is);

 * @see ClassTraversalUtil
 * @see ResourceTraversalUtil
 */
public abstract class TraversalUtil {

    /** 空の{@link Traverser}の配列です。 */
    protected static final Traverser[] EMPTY_ARRAY = new Traverser[0];

    private static final Logger logger = Logger.getLogger(TraversalUtil.class);

    /** URLのプロトコルをキー、{@link TraverserFactory}を値とするマッピングです。 */

            if (dictFile.getId().equals(id)) {
                return OptionalEntity.of(dictFile);
            }
        }
        return OptionalEntity.empty();
    }

    public void store(final DictionaryFile<? extends DictionaryItem> dictFile, final File file) {
        getDictionaryFile(dictFile.getId()).ifPresent(currentFile -> {

								><a class="nav-link active" href="${installationLink}" target="_olh"><em
										class="fa fa-exclamation-triangle text-warning"
									></a></li>
							</c:if>
							<c:choose>
								<c:when test="${!empty username && username != 'guest'}">
									<li class="nav-item">
										<div class="dropdown">
											<a class="nav-link dropdown-toggle" data-toggle="dropdown"
												href="#" role="button" aria-haspopup="true"

            final String s = file.toUri().toString();
            final String b = basePath.toUri().toString();
            final String id = s.replace(b, StringUtil.EMPTY).replace("." + imageExtention, StringUtil.EMPTY).replace("/", StringUtil.EMPTY);
            if (logger.isDebugEnabled()) {
                logger.debug("Base: {} File: {} DocId: {}", b, s, id);
            }
            return id;
        }

        return dictionaryManager.getDictionaryFile(dictId).filter(KuromojiFile.class::isInstance)
                .map(file -> OptionalEntity.of((KuromojiFile) file)).orElse(OptionalEntity.empty());
    }

    public OptionalEntity<KuromojiItem> getKuromojiItem(final String dictId, final long id) {
        return getKuromojiFile(dictId).map(file -> file.get(id).get());
    }

        }
    }

    @Override
    public synchronized void delete(final SynonymItem item) {
        final SynonymItem synonymItem = item;
        synonymItem.setNewInputs(StringUtil.EMPTY_STRINGS);
        synonymItem.setNewOutputs(StringUtil.EMPTY_STRINGS);
        try (SynonymUpdater updater = new SynonymUpdater(item)) {
            reload(updater);
        }
    }

    protected void reload(final SynonymUpdater updater) {

     */
    @Test
    public void testGuessContentType() {
        exception.expect(EmptyArgumentException.class);
        exception.expectMessage(is("[ECL0010]argument[path] is null or empty string."));
        MimeTypeUtil.guessContentType(null);
    }

        if (matcher.find()) {
            if (pathMapperFunc == null) {
                final String replacement = StringUtil.isNotBlank(getReplacement()) ? getReplacement() : StringUtil.EMPTY;
                pathMapperFunc = pathMappingHelper.createPathMatcher(matcher, replacement);
            }
            try {
                return pathMapperFunc.apply(input, matcher);