public void test_resolve() {
        String value;

        value = null;
        assertNull(ResourceUtil.resolve(value));

        value = "";
        assertEquals("", ResourceUtil.resolve(value));

        value = "a";
        assertEquals(value, ResourceUtil.resolve(value));

        value = "${a}";
        assertEquals(value, ResourceUtil.resolve(value));

        value = "$a";

            this.resolver = resolver;
        }

        public <CREDENTIAL extends LoginCredential> void resolve(final Class<CREDENTIAL> credentialType,
                final Function<CREDENTIAL, OptionalEntity<FessUser>> oneArgLambda) {
            resolver.resolve(credentialType, credential -> oneArgLambda.apply(credential));
        }
    }

        }
        final File libDir = new File(libPath);
        if (!libDir.exists()) {
            return new File[0];
        }
        return libDir.listFiles(filter);
    }

    public static String resolve(final String value) {
        if (value == null) {
            return null;
        }

        final StringBuffer tunedText = new StringBuffer(value.length());

            throw new UnsupportedOperationException();
        }

    }

    @Override
    public void resolveCredential(final LoginCredentialResolver resolver) {
        resolver.resolve(SpnegoCredential.class, credential -> {
            final String username = credential.getUserId();
            if (!ComponentUtil.getFessConfig().isAdminUser(username)) {

            return value;
        }
        return request.getRequestURL().toString();
    }

    @Override
    public void resolveCredential(final LoginCredentialResolver resolver) {
        resolver.resolve(AzureAdCredential.class, credential -> OptionalEntity.of(credential.getUser()));
    }

    public void setAcquisitionTimeout(final long acquisitionTimeout) {

            }
        });
    }

    // ===================================================================================
    //                                                                       Resolve Label
    //                                                                       =============
    protected String resolveLabelIfNeeds(final MessageManager messageManager, final Locale locale, final String label) {

typeof navigator,oe=function(){for(var e=['Edge','Trident','Firefox'],t=0;t<e.length;t+=1)if(te&&0<=navigator.userAgent.indexOf(e[t]))return 1;return 0}(),ne=te&&window.Promise,ie=ne?function(e){var t=!1;return function(){t||(t=!0,window.Promise.resolve().then(function(){t=!1,e()}))}}:function(e){var t=!1;return function(){t||(t=!0,setTimeout(function(){t=!1,e()},oe))}},re=te&&!!(window.MSInputMethodContext&&document.documentMode),pe=te&&/MSIE 10/.test(navigator.userAgent),se=function(e,t){if(!(e...

    }

    @Override
    public void resolveCredential(final LoginCredentialResolver resolver) {
        resolver.resolve(OpenIdConnectCredential.class, credential -> OptionalEntity.of(credential.getUser()));
    }

    @Override
    public ActionResponse getResponse(final SsoResponseType responseType) {

        Path filePath = ResourceUtil.getSitePath(path.replaceAll("\\.\\.+", StringUtil.EMPTY).replaceAll("/+", "/").split("/"));
        if (Files.isDirectory(filePath)) {
            filePath = filePath.resolve("index.html");
        }
        if (Files.exists(filePath)) {
            try (InputStream in = Files.newInputStream(filePath); ServletOutputStream out = response.getOutputStream()) {

        final String id = (String) source.remove(fessConfig.getIndexFieldId());
        source.remove(fessConfig.getIndexFieldVersion());
        final Number seqNo = (Number) source.remove(fessConfig.getIndexFieldSeqNo());
        final Number primaryTerm = (Number) source.remove(fessConfig.getIndexFieldPrimaryTerm());
        IndexResponse response;
        try {