public int hashCode() {
        return guid.hashCode();
    }
}
```

### 4.2 Durable Handle Request Context
```java
package jcifs.internal.smb2.persistent;

import jcifs.internal.smb2.create.Smb2CreateContext;

public class DurableHandleRequest extends Smb2CreateContext {
    public static final String NAME = "DHnQ";  // Durable Handle Request
    
    private static final int STRUCTURE_SIZE = 16;

            return new LeaseV2CreateContextResponse();
        case "DHnQ": // Durable Handle Request/Response
            return new jcifs.internal.smb2.persistent.DurableHandleResponse();
        case "DH2Q": // Durable Handle V2 Request/Response
            return new jcifs.internal.smb2.persistent.DurableHandleV2Response();
        case "DHnC": // Durable Handle Reconnect Request/Response

import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.smb2.create.CreateContextResponse;

/**
 * SMB2 Durable Handle Reconnect Response Create Context
 *
 * MS-SMB2 Section 2.2.14.2.5
 */
public class DurableHandleReconnectResponse implements CreateContextResponse {

    /**
     * Context name for durable handle reconnect response
     */
    public static final String CONTEXT_NAME = "DHnC";

import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.smb2.create.CreateContextResponse;

/**
 * SMB2 Durable Handle Response Create Context
 *
 * MS-SMB2 Section 2.2.14.2.3
 */
public class DurableHandleResponse implements CreateContextResponse {

    /**
     * Context name for durable handle response
     */
    public static final String CONTEXT_NAME = "DHnQ";

 */
public enum HandleType {
    /**
     * No durability - standard handle
     */
    NONE(0),

    /**
     * SMB 2.1 durable handle - survives network loss
     */
    DURABLE_V1(1),

    /**
     * SMB 3.0 durable handle V2 - with timeout configuration
     */
    DURABLE_V2(2),

    /**
     * SMB 3.0 persistent handle - survives server reboot
     */
    PERSISTENT(3);

import jcifs.internal.smb2.create.CreateContextRequest;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Durable Handle Request Create Context (DHnQ)
 *
 * MS-SMB2 Section 2.2.13.2.3
 */
public class DurableHandleRequest implements CreateContextRequest {

    /**
     * Context name for durable handle request
     */
    public static final String CONTEXT_NAME = "DHnQ";

            }
        }
        return false;
    }

    /**
     * Add a durable handle V1 context to this request
     */
    public void addDurableHandleV1Context() {
        addCreateContext(new jcifs.internal.smb2.persistent.DurableHandleRequest());
    }

    /**
     * Add a durable handle V2 context to this request
     * @param timeoutMs the timeout in milliseconds (0 for persistent handles)

import jcifs.internal.smb2.create.CreateContextResponse;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Durable Handle V2 Response Create Context
 *
 * MS-SMB2 Section 2.2.14.2.4
 */
public class DurableHandleV2Response implements CreateContextResponse {

    /**
     * Context name for durable handle V2 response
     */
    public static final String CONTEXT_NAME = "DH2Q";

 */
package jcifs.internal.smb2.persistent;

/**
 * Constants for SMB2/3 durable and persistent handle capabilities.
 */
public final class Smb2HandleCapabilities {

    /**
     * Flag indicating persistent handle capability
     */
    public static final int SMB2_DHANDLE_FLAG_PERSISTENT = 0x00000002;

    /**
     * Default timeout for durable handles (2 minutes)
     */

import jcifs.internal.smb2.create.CreateContextRequest;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Durable Handle V2 Request Create Context (DH2Q)
 *
 * MS-SMB2 Section 2.2.13.2.4
 */
public class DurableHandleV2Request implements CreateContextRequest {

    /**
     * Context name for durable handle V2 request
     */
    public static final String CONTEXT_NAME = "DH2Q";