assertEquals("123", getIdMethod.invoke(crawlingConfigHelper, "W123"));
            assertEquals("abc", getIdMethod.invoke(crawlingConfigHelper, "Fabc"));
            assertEquals("xyz", getIdMethod.invoke(crawlingConfigHelper, "Dxyz"));
        } catch (Exception e) {
            fail("Failed to test getId method: " + e.getMessage());
        }
    }

    public void test_getCrawlingConfig_cacheExceptionHandling() {

    assertEquals("", Strings.commonPrefix("abc", ""));
    assertEquals("", Strings.commonPrefix("", "abc"));
    assertEquals("", Strings.commonPrefix("abcde", "xyz"));
    assertEquals("", Strings.commonPrefix("xyz", "abcde"));
    assertEquals("", Strings.commonPrefix("xyz", "abcxyz"));
    assertEquals("a", Strings.commonPrefix("abc", "aaaaa"));
    assertEquals("aa", Strings.commonPrefix("aa", "aaaaa"));

        System.setProperty("abc.xyz", "789");

        value = "${abc.xyz}";
        assertEquals("789", ResourceUtil.resolve(value));

        value = "${abc}${abc.xyz}";
        assertEquals("123789", ResourceUtil.resolve(value));

        value = "xxx${abc.xyz}zzz";
        assertEquals("xxx789zzz", ResourceUtil.resolve(value));

        value = "${\\$}";
        assertEquals(value, ResourceUtil.resolve(value));

  private fun serverTruncatesRequestButTrailersCanStillBeRead(http2: Boolean) {
    val mockResponse =
      MockResponse
        .Builder()
        .doNotReadRequestBody()
        .trailers(headersOf("caboose", "xyz"))

    // Trailers always work for HTTP/2, but only for chunked bodies in HTTP/1.
    if (http2) {
      mockResponse.body("abc")
    } else {
      mockResponse.chunkedBody("abc", 1)
    }

        assertEquals("コンテンツ", doc.get("content_ja"));
    }

    public void test_updateDocument_noLanguageDetected() {
        Map<String, Object> doc = new HashMap<>();
        doc.put("title", "xyz");
        doc.put("content", "xyz");

        // Without a real detector, this will throw NullPointerException
        try {
            languageHelper.updateDocument(doc);

        assertFalse(protocolHelper.isValidWebProtocol("example.com"));
        assertFalse(protocolHelper.isValidWebProtocol(""));
        assertFalse(protocolHelper.isValidWebProtocol("xyz"));
    }

    public void test_isValidFileProtocol_validUrls() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getCrawlerWebProtocols() {

  fun sseReauths() {
    client =
      client
        .newBuilder()
        .authenticator { route, response ->
          response.request
            .newBuilder()
            .header("Authorization", "XYZ")
            .build()
        }.build()
    server.enqueue(
      MockResponse(
        code = 401,
        body = "{\"error\":{\"message\":\"No auth credentials found\",\"code\":401}}",

      if (response.code == 401) {
        assertThat(response.body.string()).isEqualTo("{\"error\":{\"message\":\"No auth credentials found\",\"code\":401}}")
        request = request.newBuilder().header("Authorization", "XYZ").build()
      } else {
        response.processEventSource(listener)
        listener.assertOpen()
        listener.assertEvent(null, null, "hey")
        listener.assertClose()
      }
    }
  }

        // Test multiple realistic exception scenarios

        // Scenario 1: Command not found
        CommandExecutionException cmdNotFound = new CommandExecutionException("Command 'xyz' not found");
        assertTrue(cmdNotFound.getMessage().contains("not found"));

        // Scenario 2: Command timeout
        CommandExecutionException timeout =

        assertEquals("abc 123 ", fessXpathTransformer.removeCommentTag("abc<!-- foo1 -->123<!-- foo2 -->"));
        assertEquals("abc 123 xyz", fessXpathTransformer.removeCommentTag("abc<!-- foo1 -->123<!-- foo2 -->xyz"));
        assertEquals("abc ", fessXpathTransformer.removeCommentTag("abc<!---->"));
        assertEquals("abc -->", fessXpathTransformer.removeCommentTag("abc<!-- foo-->-->"));