* @throws SsoLoginException if SPNEGO initialization fails
     */
    protected synchronized org.codelibs.spnego.SpnegoAuthenticator getAuthenticator() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (authenticator != null && fessConfig.getSystemPropertyAsBoolean(SPNEGO_INITIALIZED, false)) {
            return authenticator;
        }
        try {
            // set some System properties

        final Map<String, Object> doc =
                searchHelper.getDocumentByDocId(form.docId, queryFieldConfig.getResponseFields(), getUserBean()).orElse(null);
        final String url = DocumentUtil.getValue(doc, fessConfig.getIndexFieldThumbnail(), String.class);
        if (StringUtil.isBlank(form.queryId) || StringUtil.isBlank(url) || !thumbnailSupport) {
            // 404

        // Test with multiple different configs
        FessConfig[] configs = new FessConfig[5];
        FessTimeResourceProvider[] providers = new FessTimeResourceProvider[5];

        for (int i = 0; i < configs.length; i++) {
            final int value = i * 100;
            configs[i] = new FessConfig.SimpleImpl() {
                private static final long serialVersionUID = 1L;

            }
        };
    }

    // Helper method to create test FessConfig
    private FessConfig createTestFessConfig() {
        return new TestFessConfig();
    }

    // Test configuration class extending FessConfig.SimpleImpl
    private static class TestFessConfig extends FessConfig.SimpleImpl {
        private static final long serialVersionUID = 1L;

        @Override

        } catch (Exception e) {
            assertTrue(true);
        }
    }

    public void test_getAvailableBoostDocumentRuleList() {
        // Mock FessConfig
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public Integer getPageDocboostMaxFetchSizeAsInteger() {

                    // Mock implementation
                }
            };
            ComponentUtil.register(mockSystemHelper, "systemHelper");

            // Register mock FessConfig
            FessConfig mockConfig = new FessConfig.SimpleImpl() {
                private static final long serialVersionUID = 1L;

                @Override
                public Integer getSuggestSystemMonitorIntervalAsInteger() {

    @Override
    public String[] getPermissions() {
        if (permissions == null) {
            final FessConfig fessConfig = ComponentUtil.getFessConfig();
            final String baseDn = fessConfig.getLdapBaseDn();
            final String accountFilter = fessConfig.getLdapAccountFilter();
            final String groupFilter = fessConfig.getLdapGroupFilter();
            if (StringUtil.isNotBlank(baseDn) && StringUtil.isNotBlank(accountFilter)) {

        }
        try {
            final FessConfig fessConfig = ComponentUtil.getFessConfig();
            final SetObjectTagsArgs args =
                    SetObjectTagsArgs.builder().bucket(fessConfig.getStorageBucket()).object(objectName).tags(tags).build();
            createClient(fessConfig).setObjectTags(args);
        } catch (final Exception e) {

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.misc.Pair;
import org.codelibs.core.misc.Tuple3;
import org.codelibs.fess.exception.FessSystemException;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.login.LoginManager;

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final HttpServletResponse httpResponse = (HttpServletResponse) response;
        httpResponse.addHeader(ACCESS_CONTROL_ALLOW_ORIGIN, origin);
        httpResponse.addHeader(ACCESS_CONTROL_ALLOW_METHODS, fessConfig.getApiCorsAllowMethods());
        httpResponse.addHeader(ACCESS_CONTROL_ALLOW_HEADERS, fessConfig.getApiCorsAllowHeaders());