private volatile boolean inDfs, inDomainDfs;
    private volatile long treeNum; // used by SmbFile.isOpen

    private final AtomicLong usageCount = new AtomicLong(0);
    private final AtomicBoolean sessionAcquired = new AtomicBoolean(true);

    private final boolean traceResource;
    private final List<StackTraceElement[]> acquires;
    private final List<StackTraceElement[]> releases;

    private DfsReferralData treeReferral;

import java.net.ProtocolException
import java.net.SocketTimeoutException
import java.nio.charset.StandardCharsets
import java.util.Arrays
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic.AtomicBoolean
import javax.net.ssl.HttpsURLConnection
import kotlin.test.assertFailsWith
import okhttp3.Headers
import okhttp3.Protocol
import okhttp3.RecordingHostnameVerifier
import okhttp3.TestUtil.assumeNotWindows

import java.io.IOException
import java.io.InterruptedIOException
import java.net.UnknownHostException
import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic.AtomicBoolean
import kotlin.test.assertFailsWith
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Tag
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.extension.RegisterExtension

    private static final String DATA_CRAWLING_PROCESS = "DataStoreCrawler";

    /** Atomic flag indicating whether the crawler is currently running. */
    private static AtomicBoolean running = new AtomicBoolean(false);

    /** Thread-safe queue for collecting error messages during crawling operations. */
    private static Queue<String> errors = new ConcurrentLinkedQueue<>();

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.atomic.AtomicBoolean;

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.fess.Constants;

import java.util.concurrent.CopyOnWriteArrayList
import java.util.concurrent.ExecutorService
import java.util.concurrent.RejectedExecutionException
import java.util.concurrent.TimeUnit.MILLISECONDS
import java.util.concurrent.atomic.AtomicBoolean
import java.util.concurrent.atomic.AtomicInteger
import okhttp3.Call
import okhttp3.Callback
import okhttp3.EventListener
import okhttp3.Interceptor
import okhttp3.OkHttpClient
import okhttp3.Request

import java.util.concurrent.PriorityBlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicReference;
import java.util.regex.MatchResult;
import java.util.regex.Pattern;

    protected final Map<String, String> designJspFileNameMap = new LinkedHashMap<>();

    /** A flag to indicate if the system should be forcefully stopped. */
    protected final AtomicBoolean forceStop = new AtomicBoolean(false);

    /** A cache for language items. */
    protected LoadingCache<String, List<Map<String, String>>> langItemsCache;

    /** The encoding for filtering paths. */

import java.util.concurrent.PriorityBlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicReference;
import java.util.regex.MatchResult;
import java.util.regex.Pattern;

    private CredentialsInternal credentials;
    private byte[] sessionKey;
    private boolean extendedSecurity;

    private final AtomicLong usageCount = new AtomicLong(1);
    private final AtomicBoolean transportAcquired = new AtomicBoolean(true);

    private long sessionId;

    private SMBSigningDigest digest;
    private Smb2EncryptionContext encryptionContext;

    private final String targetDomain;