// Test URL getter/setter
        UrlQueueImpl<Long> queue = new UrlQueueImpl<>();

        String url = "https://example.com/path";
        queue.setUrl(url);
        assertEquals(url, queue.getUrl());

        queue.setUrl(null);
        assertNull(queue.getUrl());
    }

    public void test_metaDataGetterSetter() {
        // Test metadata getter/setter
        UrlQueueImpl<Long> queue = new UrlQueueImpl<>();

        // Test URL getter/setter
        RequestData data = new RequestData();

        String url = "https://example.com/path";
        data.setUrl(url);
        assertEquals(url, data.getUrl());

        String url2 = "http://test.org/";
        data.setUrl(url2);
        assertEquals(url2, data.getUrl());

        data.setUrl(null);
        assertNull(data.getUrl());
    }

                assertTrue(urlQueue.getUrl() + "=>" + url1, urlQueue.getUrl().startsWith(url1));
            }
            while ((urlQueue = urlQueueService.poll(sessionId2)) != null) {
                assertTrue(urlQueue.getUrl() + "=>" + url2, urlQueue.getUrl().startsWith(url2));
            }

            dataService.iterate(sessionId1, accessResult -> assertTrue(accessResult.getUrl().startsWith(url1)));

            if (arMap.containsKey(accessResult.getUrl())) {
                throw new CrawlerSystemException(
                        "AccessResult for URL '" + accessResult.getUrl() + "' already exists. Duplicate URLs are not allowed.");
            }
            arMap.put(accessResult.getUrl(), accessResult);
        }

    }

    /**

        // Verify all ResponseData objects are unchanged
        assertEquals("https://example.com/page1", responseData1.getUrl());
        assertEquals("https://example.com/page2", responseData2.getUrl());
        assertEquals("https://example.com/page3", responseData3.getUrl());
    }

    public void test_processDoesNotModifyResponseData() {
        // Test that process does not modify ResponseData

     * {@link RemoteRepository#getUrl()} root.
     *
     * @throws RuntimeException If PUT fails for any reason.
     */
    void put(@Nonnull Path source, @Nonnull URI relativeTarget);

    /**
     * PUTs the source byte array to target URI. The target MUST BE relative from the
     * {@link RemoteRepository#getUrl()} root.
     *
     * @throws RuntimeException If PUT fails for any reason.

			"Tue, 10 Nov 2009 23:00:00 UTC",
		},
	}

	for _, testCase := range testCases {
		t.Run(testCase.timeStr, func(t *testing.T) {
			gott, goterr := Parse(testCase.timeStr)
			if !errors.Is(goterr, testCase.expectedErr) {
				t.Errorf("expected %v, got %v", testCase.expectedErr, goterr)
			}
			if !gott.Equal(testCase.expectedTime) {
				t.Errorf("expected %v, got %v", testCase.expectedTime, gott)
			}
		})
	}

        for (O option : options) {
            Optional<T> o = getter.apply(option);
            if (o.isPresent()) {
                return o;
            }
        }
        return Optional.empty();
    }

    protected Optional<List<String>> collectListIfPresentOrEmpty(Function<O, Optional<List<String>>> getter) {
        int had = 0;

    /**
     * Gets the settings URL of this model source.
     *
     * @return The underlying settings URL, never {@code null}.
     * @deprecated instead use {@link #getUrl()}
     */
    @Deprecated
    public URL getSettingsUrl() {
        return getUrl();
    }

     */
    @Override
    public ResponseData execute(final RequestData request) {
        return switch (request.getMethod()) {
        case GET -> doGet(request.getUrl());
        case HEAD -> doHead(request.getUrl());
        case POST -> doPost(request.getUrl());
        default -> throw new CrawlerSystemException(request.getMethod() + " method is not supported.");
        };
    }

    /**