if (directoryLeaseManager != null) {
        directoryLeaseManager.shutdown();
    }
    super.logoff();
}
```

## 6. Configuration

### 6.1 Configuration Properties
```java
// In PropertyConfiguration.java
public static final String USE_DIRECTORY_LEASING = "jcifs.smb.client.useDirectoryLeasing";
public static final String DIRECTORY_CACHE_SCOPE = "jcifs.smb.client.directoryCacheScope";

import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.Config;
import jcifs.config.PropertyConfiguration;
import jcifs.context.BaseContext;
import jcifs.netbios.UniAddress;
import jcifs.smb.NtStatus;
import jcifs.smb.NtlmChallenge;
import jcifs.smb.NtlmPasswordAuthentication;
import jcifs.smb.SmbAuthException;

import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.Configuration;
import jcifs.config.PropertyConfiguration;
import jcifs.internal.fscc.FileSystemInformation;
import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.util.SMBUtil;

import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.Configuration;
import jcifs.config.PropertyConfiguration;
import jcifs.internal.fscc.FileBasicInfo;
import jcifs.internal.fscc.FileInformation;
import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.smb1.trans.SmbComTransaction;

import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.Config;
import jcifs.DfsReferralData;
import jcifs.NameServiceClient;
import jcifs.SmbConstants;
import jcifs.config.PropertyConfiguration;
import jcifs.context.BaseContext;
import jcifs.netbios.NbtAddress;
import jcifs.smb.DfsReferral;
import jcifs.smb.NtStatus;
import jcifs.smb.NtlmPasswordAuthentication;
import jcifs.smb.SmbAuthException;

        this.address = addr;
        this.length = len;
    }
    
    // Getters...
}
```

## 6. Configuration

### 6.1 Configuration Properties
```java
// In PropertyConfiguration.java
public static final String USE_RDMA = "jcifs.smb.client.useRDMA";
public static final String RDMA_PROVIDER = "jcifs.smb.client.rdmaProvider";

        }

        // Initialize multi-channel defaults if not set
        // Note: useMultiChannel defaults are handled by PropertyConfiguration
        // Base configuration leaves it as false by default
        if (this.maxChannels == 0) {
            this.maxChannels = 4;
        }

    }
    
    // Proceed with normal error handling/retry
    super.handleConnectionLoss(error);
}
```

## 6. Configuration

### 6.1 Configuration Properties
```java
// In PropertyConfiguration.java
public static final String USE_WITNESS = "jcifs.smb.client.useWitness";
public static final String WITNESS_HEARTBEAT_TIMEOUT = "jcifs.smb.client.witnessHeartbeatTimeout";

import org.testcontainers.junit.jupiter.Testcontainers;
import org.testcontainers.utility.MountableFile;

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.SmbConstants;
import jcifs.config.PropertyConfiguration;
import jcifs.context.BaseContext;
import jcifs.context.SingletonContext;

/**
 * Integration tests for SmbFile using a real SMB server via Testcontainers.