BufferCache.releaseBuffer(correctBuffer); // Should accept correct size
        });
    }

    /**
     * Test concurrent buffer allocation and release for thread safety.
     */
    @Test
    public void testConcurrentBufferOperations() throws Exception {
        // Given
        int threadCount = 10;
        int opsPerThread = 100;

        assertEquals((long) threadCount * operationsPerThread * 1024, mockBytesEncrypted.get());
    }

    /**
     * Test session management thread safety with concurrent operations
     */
    @Test
    public void testSessionManagementConcurrentPerformance() throws Exception {
        SmbTransportImpl mockTransport = Mockito.mock(SmbTransportImpl.class);

 *   <li>Checking if a URL has already been visited.</li>
 *   <li>Generating URL queues from a previous session's access results.</li>
 * </ul>
 *
 * <p>
 * The class uses synchronization to ensure thread safety when accessing and modifying the URL queue.
 * It also checks for duplicate URLs before adding them to the queue,
 * both within the queue itself and against previously accessed URLs stored in the {@link MemoryDataHelper}.
 * </p>

**Template Method**: `AbstractCrawlerClient`, `AbstractExtractor` - common logic with overrides
**DI**: LastaFlute container with `@Resource` and XML config

### Core Principles

**Thread Safety**:
- `AtomicLong` for counters (`CrawlerContext.accessCount`)
- `volatile` for status flags
- Synchronized blocks for critical sections
- Thread-local storage via `CrawlingParameterUtil`

**Resource Management**:

labels.roomNumber=Room Number
labels.user_description=Description
labels.description=Description
labels.user_title=Title
labels.title=Title
labels.user_pager=Pager
labels.pager=Pager
labels.user_street=Street
labels.street=Street
labels.user_postalCode=Postal Code
labels.postalCode=Postal Code
labels.user_physicalDeliveryOfficeName=Office
labels.physicalDeliveryOfficeName=Office
labels.user_destinationIndicator=Destination Indicator

import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for {@link Handler} and its inner class {@link Handler.StorageURLConnection}.
 * This test covers URL parsing, connection state management, and thread-safety.
 */
public class HandlerTest extends PlainTestCase {
    @Override
    protected void setUp() throws Exception {
        super.setUp();
        new StandardCrawlerContainer();
    }

    /**

    }

    public void setStreet_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda) {
        setStreet_Terms("street", opLambda, null);
    }

    public void setStreet_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda, OperatorCall<BsUserCA> aggsLambda) {
        setStreet_Terms("street", opLambda, aggsLambda);
    }

            final int flags = oldFlags | ServerMessageBlock2.SMB2_FLAGS_SIGNED;
            SMBUtil.writeInt4(flags, data, offset + 16);

            // Create new Mac instance for thread safety without blocking other operations
            Mac mac;
            try {
                mac = createMacInstance();
            } catch (GeneralSecurityException e) {

                return boundary;
            }
        };
    }

    // #for_now jflute to suppress CVE-2014-0050 even if commons-fileupload is older than safety version (2024/09/08)
    // but if you use safety version, this extension is basically unneeded (or you can use it as double check)
    protected void checkBoundarySize(final String contentType, final byte[] boundary) {

    protected static final String JAVABIN = "javabin";

    /** Constant for Kryo serializer type. */
    protected static final String KRYO = "kryo";

    /** ThreadLocal container for Kryo instances to ensure thread safety. */
    protected final ThreadLocal<Kryo> kryoThreadLocal;

    /**
     * Constructs a new DataSerializer.
     * <p>
     * Initializes the ThreadLocal Kryo instances with appropriate configuration.