// Persistent handles don't expire
        HandleInfo persistent = new HandleInfo(
            "/test/file2.txt",
            new HandleGuid(),
            new byte[16],
            HandleType.PERSISTENT,
            0,
            null
        );
        
        Thread.sleep(100);
        assertFalse(persistent.isExpired());
    }
    
    @Test

     */
    public jcifs.internal.smb2.persistent.DurableHandleResponse getDurableHandleResponse() {
        if (this.createContexts != null) {
            for (CreateContextResponse ctx : this.createContexts) {
                if (ctx instanceof jcifs.internal.smb2.persistent.DurableHandleResponse) {
                    return (jcifs.internal.smb2.persistent.DurableHandleResponse) ctx;
                }
            }

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSContext;
import jcifs.internal.smb2.lease.Smb2LeaseKey;

/**
 * Manager for persistent and durable SMB handles.
 *
 * This class provides:
 * - Handle lifecycle management
 * - Persistent storage for persistent handles
 * - Expiration tracking for durable handles
 * - Thread-safe access to handle information
 */
public class PersistentHandleManager {

 * Lesser General Public License for more details.
 */
package jcifs.internal.smb2.persistent;

import java.io.Serializable;
import java.util.Arrays;

import jcifs.internal.smb2.lease.Smb2LeaseKey;

/**
 * Information about a durable or persistent SMB handle.
 * This class holds all the necessary information to reconnect
 * a handle after network failures or server reboots.
 */

        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)
     * @param persistent true if this should be a persistent handle
     * @return the create GUID for this handle
     */

    /**
     * Create a new durable handle V2 request
     * @param timeoutMs the timeout in milliseconds (0 for persistent handles)
     * @param persistent true if this should be a persistent handle
     */
    public DurableHandleV2Request(long timeoutMs, boolean persistent) {
        this.timeoutMs = timeoutMs;
        this.flags = persistent ? Smb2HandleCapabilities.SMB2_DHANDLE_FLAG_PERSISTENT : 0;
        this.createGuid = new HandleGuid();
    }

     */
    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);

    private final int value;

    HandleType(int value) {
        this.value = value;
    }

    /**
     * Get the numeric value of this handle type

 * Lesser General Public License for more details.
 */
package jcifs.internal.smb2.persistent;

import java.io.IOException;
import java.util.concurrent.CompletableFuture;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.internal.smb2.create.Smb2CreateRequest;

/**
 * Handles automatic reconnection of durable and persistent SMB handles.
 *
 * This class provides retry logic with exponential backoff for handle

 * Lesser General Public License for more details.
 */
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;

    /**

 * Lesser General Public License for more details.
 */
package jcifs.internal.smb2.persistent;

import java.io.Serializable;
import java.nio.ByteBuffer;
import java.util.UUID;

/**
 * Handle GUID structure for SMB2/3 durable and persistent handles.
 * Provides a unique identifier for each handle that can be used
 * for reconnection after network failures or server reboots.
 *