e.list = l
	l.len++
	return e
}

// insertValue is a convenience wrapper for insert(&Entry{Value: v, ExpiresAt: ExpiresAt}, at).
func (l *LruList[K, V]) insertValue(k K, v V, expiresAt time.Time, at *Entry[K, V]) *Entry[K, V] {
	return l.insert(&Entry[K, V]{Value: v, Key: k, ExpiresAt: expiresAt}, at)
}

// Remove removes e from its list, decrements l.len
func (l *LruList[K, V]) Remove(e *Entry[K, V]) V {

        public String propertiesPath;

        /** Number of days after which documents should expire and be cleaned up. */
        @Option(name = "-e", aliases = "--expires", metaVar = "expires", usage = "Expires for documents")
        public String expires;

        /** Interval in milliseconds for hot thread monitoring and logging. */

        purgeDocJob = new PurgeDocJob();

        // Reset flags and variables
        deleteByQueryCalled = false;
        deleteIndex = null;
        deleteQuery = null;
        expiresFieldName = "expires";
        documentUpdateIndex = "fess.update";

        // Create mock SearchEngineClient
        searchEngineClient = new SearchEngineClient() {
            @Override

    @Test
    public void test_process_withExpires() throws Exception {
        // Test that expires value is properly set
        Crawler.Options options = new Crawler.Options();
        options.sessionId = "test-session";
        options.expires = "14";

        // Verify the expires value is set
        assertEquals("14", options.expires);
    }

    @Test
    public void test_process_withInvalidExpires() throws Exception {

        .addHeader("Last-Modified: " + formatDate(-1, TimeUnit.HOURS))
        .addHeader("Expires: " + formatDate(1, TimeUnit.HOURS))
        .body("ABC")
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .addHeader("Last-Modified: " + formatDate(-5, TimeUnit.MINUTES))
        .addHeader("Expires: " + formatDate(2, TimeUnit.HOURS))
        .body("DEF")
        .build(),
    )

    // 0 expires
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(1, 2, 3, 4, 5, 6, 7, 8, 9);

    // reorder
    getAll(cache, asList(0, 1, 2));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(2, MILLISECONDS);
    assertThat(keySet).containsExactly(3, 4, 5, 6, 7, 8, 9, 0, 1, 2);

    // 3 expires
    ticker.advance(1, MILLISECONDS);

                                    <label for="doc.expires" class="col-sm-3 text-sm-right col-form-label">expires</label>
                                    <div class="col-sm-9">
                                        <la:errors property="doc.expires"/>
                                        <la:text styleId="doc.expires"
                                                 property="doc.expires" styleClass="form-control"

                    return "click_count";
                case FessConfig.INDEX_FIELD_config_id:
                    return "config_id";
                case FessConfig.INDEX_FIELD_EXPIRES:
                    return "expires";
                case FessConfig.INDEX_FIELD_URL:
                    return "url";
                case FessConfig.INDEX_FIELD_doc_id:
                    return "doc_id";
                case FessConfig.INDEX_FIELD_ID:

            }
        }, "systemHelper");

        crawlingInfoHelper.documentExpires = currentTime + 1000;
        Date expires = crawlingInfoHelper.getDocumentExpires(null);
        assertNotNull(expires); // Returns documentExpires when config is null
        assertEquals(currentTime + 1000, expires.getTime());

        // Test when documentExpires is set but config is provided (but config has no timeToLive)

      },
      "created": {
        "type": "date",
        "format": "date_optional_time"
      },
      "timestamp": {
        "type": "date",
        "format": "date_optional_time"
      },
      "expires": {
        "type": "date",
        "format": "date_optional_time"
      },
      "digest": {
        "type": "text",
        "index": false
      },
      "doc_id": {
        "type": "keyword"