@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class MapPutIfAbsentTester<K, V> extends AbstractMapTester<K, V> {

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutIfAbsent_supportedAbsent() {
    assertNull(
        "putIfAbsent(notPresent, value) should return null", getMap().putIfAbsent(k3(), v3()));
    expectAdded(e3());
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)

        Thread.sleep(2000);
        assertTrue(expiredCount > 0);
        assertEquals(1, TimeoutManager.getInstance().getTimeoutTaskCount());
        TimeoutManager.getInstance().stop();
        assertNull(TimeoutManager.getInstance().thread);
        Thread.sleep(10);
        int count = expiredCount;
        task.stop();
        TimeoutManager.getInstance().start();

        assertNull(result);
    }

    @Test
    void testGetByNameWithNonExistentFile() {
        // Test with non-existent file
        when(mockConfig.getLmHostsFileName()).thenReturn("/non/existent/lmhosts");

        NbtAddress result = lmhosts.getByName("TEST_HOST", mockContext);

        assertNull(result);
    }

    @Test

        NegTokenInit parsed = new NegTokenInit(bytes);
        assertNull(parsed.getMechanisms(), "Mechanisms should be null when absent");
        assertEquals(0, parsed.getContextFlags(), "Flags should be zero when absent");
        assertNull(parsed.getMechanismToken(), "Mechanism token should be null when absent");
        assertNull(parsed.getMechanismListMIC(), "MIC should be null when absent");
    }

    @Test

        org.lastaflute.web.response.ActionResponse response = authenticator.getResponse(org.codelibs.fess.sso.SsoResponseType.METADATA);
        assertNull(response);

        response = authenticator.getResponse(org.codelibs.fess.sso.SsoResponseType.LOGOUT);
        assertNull(response);
    }

    @Test
    public void test_innerClassNaming() {
        // Verify the inner SpnegoConfig class exists and is properly named

        assertNotNull(preauthService.getCurrentPreauthHash(sessionId2));

        preauthService.cleanup();

        assertNull(preauthService.getCurrentPreauthHash(sessionId1));
        assertNull(preauthService.getCurrentPreauthHash(sessionId2));
    }

                return null;
            }
        });

        FessConfig config = ComponentUtil.getFessConfig();
        assertNull(config.getMailFromName());
        assertNull(config.getMailFromAddress());
        assertNull(config.getMailHostname());
    }

    // Test creator instance creation with valid config
    @Test
    public void test_multipleCreatorInstances() {

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertInstanceOf;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;

        assertNull(provider.providePrimaryOneWayCryptographer());
    }

    @Test
    public void test_constructor_withBothNull() {
        // Test with both cryptographers null
        FessSecurityResourceProvider provider = new FessSecurityResourceProvider(null, null);
        assertNotNull(provider);
        assertNull(provider.providePrimaryInvertibleCryptographer());

        final LlmChatRequest request = new LlmChatRequest();
        assertNotNull(request.getMessages());
        assertTrue(request.getMessages().isEmpty());
        assertNull(request.getModel());
        assertNull(request.getMaxTokens());
        assertNull(request.getTemperature());
        assertFalse(request.isStream());
    }

    @Test
    public void test_addMessage() {