@Test
    public void testNullPasswordHandling() {
        authenticator = new NtlmPasswordAuthenticator("DOMAIN", "username", (String) null);

        assertNull(authenticator.getPassword(), "getPassword should return null for null password");
        assertNull(authenticator.getPasswordAsCharArray(), "getPasswordAsCharArray should return null for null password");

        // secureWipePassword should not throw exception

        assertNull(auth1.getPassword());

        // Test with null char[] password
        NtlmPasswordAuthenticator auth2 = new NtlmPasswordAuthenticator("testuser", (char[]) null);
        assertNull(auth2.getPassword());

        // Test secure wipe on null password
        auth1.secureWipePassword(); // Should not throw exception
        assertNull(auth1.getPassword());
    }

    /**

            // If JAAS is not configured and getSubject() returns null, verify cloning still works
            assertNull(first, "First call to getSubject() returned null - JAAS not configured");

            // Clone should also return null for getSubject() calls
            Subject copySubj = copy.getSubject();
            assertNull(copySubj, "Clone should also return null when original has null cached subject");

        assertNotNull(context);
        assertNull(context.getSessionId());
        assertEquals(0, context.getActiveThreadCount().intValue());
        assertEquals(0L, context.getAccessCount());
        assertEquals(CrawlerStatus.INITIALIZING, context.getStatus());
        assertNull(context.getUrlFilter());
        assertNull(context.getRuleManager());
        assertNull(context.getIntervalController());

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.mock;

        assertNull(config.getNetbiosHostname());
        assertNull(config.getLocalAddr());
        assertNull(config.getBroadcastAddress());
        assertNull(config.getResolveOrder());
        assertNotNull(config.getWinsServers());
        assertEquals(0, config.getWinsServers().length);
        assertEquals(0, config.getNetbiosLocalPort());
        assertNull(config.getNetbiosLocalAddress());

        CrawlerSystemException exception = new CrawlerSystemException((String) null);

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    /**
     * Test constructor with empty message
     */
    public void test_constructor_withEmptyMessage() {
        CrawlerSystemException exception = new CrawlerSystemException("");

        assertNull(matchedRule);
    }

    /**
     * Test getRule with null ResponseData
     */
    public void test_getRule_nullResponseData() {
        TestRule rule = new TestRule("rule1", true);

        ruleManager.addRule(rule);

        Rule matchedRule = ruleManager.getRule(null);

        assertNull(matchedRule);
    }

    /**

            assertEquals("text/plain", responseData.getMimeType());
            assertNull(responseData.getResponseBody());
        }

        try (final ResponseData responseData = smbClient.doHead(baseUrl)) {
            assertNull(responseData);
        }
        try (final ResponseData responseData = smbClient.doHead(baseUrl + "dir1/")) {
            assertNull(responseData);
        }

     * Test getter and setter for componentName
     */
    public void test_componentName_getterSetter() {
        assertNull(factory.getComponentName());

        factory.setComponentName("testName");
        assertEquals("testName", factory.getComponentName());

        factory.setComponentName(null);
        assertNull(factory.getComponentName());

        factory.setComponentName("");