final String tokenUrl = getParameter(TOKEN_URL);
        final String tokenPattern = getParameter(TOKEN_PATTERN);
        final List<Pair<String, String>> responseParams = new ArrayList<>();
        final String encoding = getParameter(ENCODING);
        if (StringUtil.isNotBlank(tokenUrl) && StringUtil.isNotBlank(tokenPattern)) {
            final String tokenHttpMethod = getParameter(TOKEN_METHOD);

                if (StringUtil.isNotBlank(sesState)) {
                    session.removeAttribute(OIC_STATE);
                    final String code = request.getParameter("code");
                    final String reqState = request.getParameter("state");
                    if (logger.isDebugEnabled()) {
                        logger.debug("code: {}, state(request): {}, state(session): {}", code, reqState, sesState);

            log.debug(dirents.length + " items listed");
        }
        sorted = new LinkedList<>();
        fmt = req.getParameter("fmt");
        if (fmt == null) {
            fmt = "col";
        }
        sort = 0;
        if ((str = req.getParameter("sort")) == null || str.equals("name")) {
            sort = 0;
        } else if (str != null) {
            switch (str) {

            log.println(dirents.length + " items listed");
        }
        sorted = new LinkedList();
        fmt = req.getParameter("fmt");
        if (fmt == null) {
            fmt = "col";
        }
        sort = 0;
        if ((str = req.getParameter("sort")) == null || str.equals("name")) {
            sort = 0;
        } else if (str != null) {
            switch (str) {

    private RequestManager createMockRequestManager(final String paramValue) {
        return new org.lastaflute.web.servlet.request.SimpleRequestManager() {
            @Override
            public OptionalThing<String> getParameter(String name) {
                if (paramValue != null) {
                    return OptionalThing.of(paramValue);
                }
                return OptionalThing.empty();
            }
        };

        }

        @Override
        public ServletInputStream getInputStream() throws IOException {
            return null;
        }

        @Override
        public String getParameter(String name) {
            return null;
        }

        @Override
        public Enumeration<String> getParameterNames() {
            return null;
        }

        @Override

            return null;
        }

        @Override
        public jakarta.servlet.ServletInputStream getInputStream() {
            return null;
        }

        @Override
        public String getParameter(String name) {
            return null;
        }

        @Override
        public java.util.Enumeration<String> getParameterNames() {
            return java.util.Collections.emptyEnumeration();
        }

        request.setParameterValues("facet.query", new String[] { "query1", "query2" });
        request.setParameter("facet.size", "100");
        request.setParameter("facet.minDocCount", "5");
        request.setParameter("facet.sort", "count");
        request.setParameter("facet.missing", "other");

        FacetInfo facetInfo = searchRequestParams.createFacetInfo(request);
        assertNotNull(facetInfo);

     * @param roleSet The set of roles.
     */
    protected void processParameter(final HttpServletRequest request, final Set<String> roleSet) {
        final String parameter = request.getParameter(parameterKey);
        if (logger.isDebugEnabled()) {
            logger.debug("{}:{}", parameterKey, parameter);
        }
        if (StringUtil.isNotEmpty(parameter)) {

            @Override
            public jakarta.servlet.ServletInputStream getInputStream() throws IOException {
                return null;
            }

            @Override
            public String getParameter(String name) {
                return null;
            }

            @Override
            public java.util.Enumeration<String> getParameterNames() {
                return null;
            }