}

    /**
     * Tests the {@link PacUnicodeString#check(String)} method with a non-empty string when the pointer is zero.
     * This is an invalid state and should throw an exception.
     */
    @Test
    void testCheck_withNonNullStringAndZeroPointer_throwsException() {
        // A zero pointer should mean the string is null

        // After failure, state should be reset to disconnected
        assertEquals(0, tree.connectionState);
    }

    @Test
    void testSend() throws SmbException {
        SmbTree tree = new SmbTree(session, "testShare", "A:");
        tree.connectionState = 2; // Connected state
        tree.tid = 123;

    public WitnessServiceType getServiceType() { return serviceType; }
    public WitnessRegistrationState getState() { return state; }
    public void setState(WitnessRegistrationState state) { this.state = state; }
}
```

### 4.2 Witness Notification
```java
package jcifs.internal.witness;

import java.util.List;
import java.util.ArrayList;

    
    public int getScore() {
        // Calculate channel score for load balancing
        int score = 100;
        
        // Adjust based on state
        if (state == ChannelState.ACTIVE) score -= 20;  // Busy channel
        if (state != ChannelState.ESTABLISHED && state != ChannelState.ACTIVE) return 0;
        
        // Adjust based on error rate
        double errorRate = getErrorRate();

├── Smb2LeaseKey.java            - 16-byte lease key management
├── Smb2LeaseState.java          - Lease state flags (R, H, W)
└── LeaseManager.java            - Central lease management
```

#### 1.2 Implementation Tasks
- [ ] Define lease state constants (SMB2_LEASE_READ, SMB2_LEASE_HANDLE, SMB2_LEASE_WRITE)
- [ ] Implement lease key generation and management

                        }

                        break;
                    default:
                        throw new SmbException("Unexpected session setup state: " + state);
                    }
                } while (state != 0);
            } catch (final SmbException se) {
                logoff(true);
                connectionState = 0;
                throw se;
            } finally {

### SMB3 Encryption Support
- **SMB2 Transform Header**: Encrypted message wrapping
- **AES-CCM/GCM Support**: Both AES-128-CCM (SMB 3.0/3.0.2) and AES-128-GCM (SMB 3.1.1) cipher suites
- **Encryption Context**: Per-session encryption state management
- **Key Derivation**: SMB3 KDF implementation with dialect-specific parameters
- **Pre-Authentication Integrity**: SMB 3.1.1 PAI for preventing downgrade attacks

 * This class provides methods to handle authentication details such as
 * authentication scope, credentials, and authentication scheme.
 *
 * <p>
 * It includes constructors to initialize these details and getter and setter
 * methods to access and modify them.
 * </p>
 *
 * <p>
 * Example usage:
 * </p>
 * <pre>
 * {@code
 * AuthScope authScope = new AuthScope("example.com", 80);

            assertEquals(address, connection.getRemoteAddress(), "Remote address should match");
            assertNotNull(connection.getState(), "Connection state should not be null");

            System.out.println("RDMA connection created to: " + address);
            System.out.println("Connection state: " + connection.getState());
        }
    }

    @Test
    public void testRdmaTransportCreationWithMockDelegate() throws Exception {

    protected final AtomicInteger sendCredits;
    protected final AtomicInteger receiveCredits;
    protected final BlockingQueue<RdmaWorkRequest> pendingRequests;
    
    // Connection state
    protected volatile RdmaConnectionState state;
    protected RdmaCredits credits;
    protected int maxFragmentedSize;
    protected int maxReadWriteSize;
    
    public enum RdmaConnectionState {
        DISCONNECTED,