}).forEach(e -> {
            if (buf.length() > 0) {
                buf.append('\n');
            }
            buf.append(e.getFirst());
            buf.append('=');
            buf.append(e.getSecond());
        });
        return buf.toString();
    }

    /**
     * Loads configuration parameters into a map.
     *
     * @param paramMap the parameter map

        StreamUtil.stream(groupsAndRoles.getSecond()).of(stream -> stream.forEach(roleList::add));
        if (logger.isDebugEnabled()) {
            logger.debug("[processParentGroup] Completed for id: {}, depth: {}, added groups: {}, added roles: {}", id, depth,
                    groupsAndRoles.getFirst().length, groupsAndRoles.getSecond().length);
        }
    }

    /**

            params.put("User Agent", e.getUserAgent());
            e.getSearchFieldLogList().stream().forEach(p -> {
                params.put(p.getFirst(), p.getSecond());
            });
            e.getRequestHeaderList().stream().forEach(p -> {
                params.put(p.getFirst(), p.getSecond());
            });
            return params;
        }).get();
    }

    /**

                return Map.of();
            }
        }.getChildUrlRules(null, null).map(v -> v.getFirst() + ":" + v.getSecond()).collect(Collectors.joining(",")));
        assertEquals("//A:href", new FessXpathTransformer() {
            protected Map<String, String> getConfigPrameterMap(final ResponseData responseData, final ConfigName config) {

        final String value = clientConfigMap.get(CRAWLER_CLIENTS);
        final CrawlerClient client = getClientRuleList(value).stream().map(e -> {
            if (e.getSecond().matcher(url).matches()) {
                return e.getFirst();
            }
            return null;
        })
                .filter(StringUtil::isNotBlank)
                .findFirst()//

    }

    @Override
    protected void writeHeaders(final HttpServletResponse response) {
        ComponentUtil.getFessConfig().getApiJsonResponseHeaderList().forEach(e -> response.setHeader(e.getFirst(), e.getSecond()));
    }

    }

    @Override
    protected void writeHeaders(final HttpServletResponse response) {
        ComponentUtil.getFessConfig().getApiJsonResponseHeaderList().forEach(e -> response.setHeader(e.getFirst(), e.getSecond()));
    }

    /**
     * Writes a JSON response.
     * @param status The status code.
     * @param t The throwable.
     */

        assertEquals(1, designJspFileNames.length);
        assertEquals("xxx", designJspFileNames[0].getFirst());
        assertEquals("yyy", designJspFileNames[0].getSecond());
    }

    @Test
    public void test_setForceStop() {
        assertFalse(systemHelper.isForceStop());
        systemHelper.setForceStop(true);
        assertTrue(systemHelper.isForceStop());

                }
            }
        }

        formSchemeList.forEach(p -> {
            final Hc4FormScheme scheme = p.getFirst();
            final Credentials credentials = p.getSecond();
            scheme.authenticate(credentials, (request, consumer) -> {

                // request header
                for (final Header header : requestHeaderList) {
                    request.addHeader(header);

                }
            }
        }

        formSchemeList.forEach(p -> {
            final Hc5FormScheme scheme = p.getFirst();
            final Credentials credentials = p.getSecond();
            scheme.authenticate(credentials, (request, consumer) -> {

                // request header
                for (final Header header : requestHeaderList) {
                    request.addHeader(header);