assertEquals(expectedStatus, ex.getNtStatus(), "status should map based on code");
        assertNull(ex.getCause(), "cause must be null for int constructor");
        assertNull(ex.getRootCause(), "rootCause must be null for int constructor");
    }

    /**
     * Validate message-only constructor with both null and empty messages.
     */

        // IPv6 without port
        assertEquals("https://[::1]", IpAddressUtil.buildUrl("https", ipv6, 0, ""));

        // Null protocol or address
        assertNull(IpAddressUtil.buildUrl(null, ipv4, 8080, "/path"));
        assertNull(IpAddressUtil.buildUrl("http", (InetAddress) null, 8080, "/path"));
    }

    @Test
    public void testBuildUrlWithHostString() {
        // IPv4 with port and path

        // Verify
        assertNull(result);
    }

    @Test
    public void test_getResponse_withUnsetType() {
        // Execute - requesting type without setting response
        ActionResponse result = authenticator.getResponse(SsoResponseType.METADATA);

        // Verify
        assertNull(result);
    }

    // Test logout method
    @Test

        DocMap docMap = new DocMap(parentMap);

        assertNull(docMap.put("newKey", "newValue"));
        assertEquals("newValue", docMap.get("newKey"));

        assertEquals("newValue", docMap.put("newKey", "updatedValue"));
        assertEquals("updatedValue", docMap.get("newKey"));

        assertNull(docMap.get("nonexistent"));
    }

    @Test
    public void test_remove() {

        assertEquals("r1", kuromojiItem.getReading());
        assertEquals("p1", kuromojiItem.getPos());
        assertNull(kuromojiItem.getNewToken());
        assertNull(kuromojiItem.getNewSegmentation());
        assertNull(kuromojiItem.getNewReading());
        assertNull(kuromojiItem.getNewPos());
        assertFalse(kuromojiItem.isUpdated());
        assertFalse(kuromojiItem.isDeleted());

        assertEquals(NegTokenTarg.ACCEPT_INCOMPLETE, parsed.getResult(), "result should be present");
        assertNull(parsed.getMechanism(), "mechanism should be null when omitted");
        assertNull(parsed.getMechanismToken(), "mechanism token should be null when omitted");
        assertNull(parsed.getMechanismListMIC(), "MIC should be null when omitted");
    }

    @Test

            // 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");

        netdfs.DfsStorageInfo decodedStorageInfo = new netdfs.DfsStorageInfo();
        decodedStorageInfo.decode(src);

        assertEquals(storageInfo.state, decodedStorageInfo.state);
        assertNull(decodedStorageInfo.server_name);
        assertNull(decodedStorageInfo.share_name);
    }

    @Test
    void testDfsInfo3_EncodeDecode() throws NdrException {
        netdfs.DfsInfo3 info3 = new netdfs.DfsInfo3();

        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_constructor_withNullMessage() {
        // Test with null message
        LdapConfigurationException exception = new LdapConfigurationException(null);

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

    @Test

        assertEquals(123, dataStoreParams.get("key2"));

        dataStoreParams.put("key3", null);
        assertNull(dataStoreParams.get("key3"));
    }

    // Test get for non-existent key
    @Test
    public void test_getNonExistentKey() {
        assertNull(dataStoreParams.get("nonexistent"));
    }

    // Test getAsString with String value
    @Test