// Use reflection to access protected method
        final java.lang.reflect.Method method = CrawlerThread.class.getDeclaredMethod("isValid", UrlQueue.class);
        method.setAccessible(true);
        final boolean result = (boolean) method.invoke(crawlerThread, urlQueue);

        assertTrue(result);
    }

    /**
     * Test isValid method with a null URL queue.
     */

            writeParams.setAccessible(true);
            writeParams.invoke(cancel, dst, 0);

            Method writeBytes = SmbComNtCancel.class.getDeclaredMethod("writeBytesWireFormat", byte[].class, int.class);
            writeBytes.setAccessible(true);
            writeBytes.invoke(cancel, dst, 0);

            // Then - array should remain unchanged

        opCodeField.setAccessible(true);
        opCodeField.set(nameQueryResponse, 7); // WACK opCode, which is not QUERY (0)

        // Ensure 'resultCode' is 0 for this test to isolate opCode condition
        Field resultCodeField = NameServicePacket.class.getDeclaredField("resultCode");
        resultCodeField.setAccessible(true);
        resultCodeField.set(nameQueryResponse, 0);

        Field configField = NameServicePacket.class.getDeclaredField("config");
        configField.setAccessible(true);
        assertSame(mockConfig, configField.get(response));

        // Verify queryAddress is set
        Field queryAddressField = NodeStatusResponse.class.getDeclaredField("queryAddress");
        queryAddressField.setAccessible(true);
        assertSame(mockQueryAddress, queryAddressField.get(response));

            fileInfoClassField.setAccessible(true);
            byte actualFileInfoClass = (byte) fileInfoClassField.get(request);
            assertEquals(testFileInfoClass, actualFileInfoClass);

            Field infoTypeField = Smb2QueryInfoRequest.class.getDeclaredField("infoType");
            infoTypeField.setAccessible(true);
            byte actualInfoType = (byte) infoTypeField.get(request);

            oplockLevelField.setAccessible(true);
            assertEquals(expectedOplockLevel, oplockLevelField.get(notification));

            Field fileIdField = Smb2OplockBreakNotification.class.getDeclaredField("fileId");
            fileIdField.setAccessible(true);
            assertArrayEquals(expectedFileId, (byte[]) fileIdField.get(notification));
        }

        Field bindingField = DcerpcHandle.class.getDeclaredField("binding");
        bindingField.setAccessible(true);
        bindingField.set(handle, mockDcerpcBinding);

        // Inject the CIFSContext using reflection
        Field tcField = DcerpcHandle.class.getDeclaredField("transportContext");
        tcField.setAccessible(true);
        tcField.set(handle, mockContext);

        totalParamField.setAccessible(true);
        assertEquals(1000, totalParamField.get(response));

        Field totalDataField = response.getClass().getSuperclass().getSuperclass().getDeclaredField("totalDataCount");
        totalDataField.setAccessible(true);
        assertEquals(2000, totalDataField.get(response));

        info502.sd_size = securityDescriptorBytes.length;

        // Replace info field
        Field infoField = msrpcShareGetInfo.getClass().getSuperclass().getDeclaredField("info");
        infoField.setAccessible(true);
        infoField.set(msrpcShareGetInfo, info502);

        // Test getSecurity - with no DACL, it should return null
        ACE[] result = msrpcShareGetInfo.getSecurity();
        assertNull(result);

        remarkField.setAccessible(true);
        assertEquals("Test remark", remarkField.get(msrpcShareInfo1));
    }

    @Test
    void testLevelParameter() throws Exception {
        // Verify that level is set to 1 as per the constructor
        Field levelField = srvsvc.ShareEnumAll.class.getDeclaredField("level");
        levelField.setAccessible(true);