logger.info("item: {}", item);
        assertTrue(item.containsKey("content_title"));
        final String contentTitle = (String) item.get("content_title");
        assertTrue(contentTitle.contains("<strong>CodeLibs</strong>"),
                "content_title should contain highlighted 'CodeLibs': " + contentTitle);
    }

    private void testDeleteSearchList() {

            this.index = index;
            String titleValue = toStringOrNull(doc.get("title"));
            if (titleValue == null || titleValue.isEmpty()) {
                titleValue = toStringOrNull(doc.get("content_title"));
            }
            this.title = titleValue;
            this.url = toStringOrNull(doc.get("url"));
            this.docId = toStringOrNull(doc.get("doc_id"));

                return "content_description";
            }

            @Override
            public String getResponseFieldContentTitle() {
                return "content_title";
            }

            @Override
            public String getResponseFieldSitePath() {
                return "site_path";
            }

            @Override

                return "content_description";
            }

            @Override
            public String getResponseFieldContentTitle() {
                return "content_title";
            }

            @Override
            public String getResponseFieldSitePath() {
                return "site_path";
            }

            @Override

index.field.thumbnail=thumbnail
# Field name for virtual host in the index.
index.field.virtual_host=virtual_host
# Field name for content title in the response.
response.field.content_title=content_title
# Field name for content description in the response.
response.field.content_description=content_description
# Field name for URL link in the response.
response.field.url_link=url_link

                                                <li class="col-sm-12">
                                                    <h3 class="title">
                                                        <a href="${doc.url_link}">${doc.content_title}</a>
                                                    </h3>
                                                    <div class="body col-sm-10">

			<li id="result${s.index}">
				<h3 class="title text-truncate">
					<a class="link" href="${doc.url_link}" data-uri="${doc.url_link}"
						data-id="${doc.doc_id}" data-order="${s.index}">${doc.content_title}</a>
				</h3>
				<div class="body">
					<c:if test="${thumbnailSupport && !empty doc.thumbnail}">
					<div class="me-3">

			<li id="result${s.index}">
				<h3 class="title text-truncate">
					<a class="link" href="${doc.url_link}" data-uri="${doc.url_link}"
						data-id="${doc.doc_id}" data-order="${s.index}">${doc.content_title}</a>
				</h3>
				<div class="body">
					<c:if test="${thumbnailSupport && !empty doc.thumbnail}">
					<div class="me-3">

    /** The key of the configuration. e.g. virtual_host */
    String INDEX_FIELD_virtual_host = "index.field.virtual_host";

    /** The key of the configuration. e.g. content_title */
    String RESPONSE_FIELD_content_title = "response.field.content_title";

    /** The key of the configuration. e.g. content_description */
    String RESPONSE_FIELD_content_description = "response.field.content_description";