* The value is, e.g. 10 <br>
     * comment: Query frequency for popular word suggestion.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getSuggestPopularWordQueryFreq();

    /**
     * Get the value for the key 'suggest.popular.word.query.freq' as {@link Integer}. <br>

suggest.popular.word.size=10
# Window size for popular word suggestion.
suggest.popular.word.window.size=30
# Query frequency for popular word suggestion.
suggest.popular.word.query.freq=10
# Minimum hit count for suggestion.
suggest.min.hit.count=1
# Field for suggestion contents.
suggest.field.contents=_default
# Field for suggestion tags.
suggest.field.tags=label

        FilterChain chain = new FilterChain() {
            @Override
            public void doFilter(ServletRequest req, ServletResponse res) throws IOException, ServletException {
                chainCalled.set(true);
                assertSame(request, req);
                assertSame(response, res);
            }
        };

        // Setup WebApiManagerFactory that returns null

                                })
                                .filter(req -> req != null)
                                .toArray(n -> new UpdateRequest[n]);
                if (updateRequests.length > 0) {
                    searchHelper.bulkUpdate(builder -> {
                        for (final UpdateRequest req : updateRequests) {
                            builder.add(req);
                        }
                    });

   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      copyright license to reproduce, prepare Derivative Works of,
      publicly display, publicly perform, sublicense, and distribute the
      Work and such Derivative Works in Source or Object form.

    }

    /**
     * Get the client IP.
     * @return The client IP.
     */
    protected String getClientIp() {
        return LaRequestUtil.getOptionalRequest().map(req -> ComponentUtil.getViewHelper().getClientIp(req)).orElse("-");
    }

    /**
     * The action.
     */
    protected enum Action {
        /**
         * The login action.
         */
        LOGIN,
        /**

        @Override
        public jakarta.servlet.AsyncContext startAsync() {
            return null;
        }

        @Override
        public jakarta.servlet.AsyncContext startAsync(jakarta.servlet.ServletRequest req, jakarta.servlet.ServletResponse res) {
            return null;
        }

        @Override
        public boolean isAsyncStarted() {
            return false;
        }

        @Override

     * @param body The body.
     */
    protected void writeJsonResponse(final int status, final String body) {
        final String callback = LaRequestUtil.getOptionalRequest().map(req -> req.getParameter("callback")).orElse(null);
        final boolean isJsonp = ComponentUtil.getFessConfig().isApiJsonpEnabled() && StringUtil.isNotBlank(callback);

 * and DI container integration.
 *
 * <p>Thread Safety: This class is thread-safe. Each cached entry holds its own
 * GroovyClassLoader. The cache uses Guava Cache with segment-based locking for
 * lock-free concurrent reads. Each evaluate() call creates a new Script instance
 * to ensure thread isolation of bindings.</p>
 *
 * <p>Note on class-level isolation: Compiled Script classes are cached and reused.

            } else if (entry.getValue().length == 1) {
                curlRequest.param(entry.getKey(), entry.getValue()[0]);
            }
        });
        try (final CurlResponse curlResponse = curlRequest.onConnect((req, con) -> {
            con.setDoOutput(true);
            if (httpMethod != Method.GET && request.getContentLength() > 2) {