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";

    private static final byte[] CONTEXT_NAME_BYTES = CONTEXT_NAME.getBytes();

 * 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";

    private static final byte[] CONTEXT_NAME_BYTES = CONTEXT_NAME.getBytes();

    // The response structure is reserved and must be zero (8 bytes)
    private byte[] reserved = new byte[8];

    /**

 */
public class DurableHandleContextTest {

    @Test
    public void testDurableHandleRequest() {
        DurableHandleRequest request = new DurableHandleRequest();

        assertEquals("DHnQ", new String(request.getName()));
        assertTrue(request.size() > 0);

        // Test encoding
        byte[] buffer = new byte[request.size()];
        int encoded = request.encode(buffer, 0);

        }

        @Test
        @DisplayName("Should handle special SMB2 context names")
        void testSMB2ContextNames() {
            // Common SMB2 create context names
            String[] contextNames = { "DHnQ", // Durable handle request
                    "DHnC", // Durable handle reconnect
                    "AlSi", // Allocation size
                    "MxAc", // Max access
                    "TWrp", // Timewarp

            return new LeaseV1CreateContextResponse();
        case LeaseV2CreateContextRequest.CONTEXT_NAME: // "RqL2"
            return new LeaseV2CreateContextResponse();
        case "DHnQ": // Durable Handle Request/Response
            return new jcifs.internal.smb2.persistent.DurableHandleResponse();
        case "DH2Q": // Durable Handle V2 Request/Response

```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;
    private long reserved;  // Must be zero
    
    public DurableHandleRequest() {
        super(NAME);