- Update `SmbFile` caching logic to use leases
- Add lease break handling in `SmbTransport`

---

### Phase 2: Persistent Handles
**Priority: HIGH** | **Estimated Effort: 4-5 weeks**

Persistent handles allow connections to survive network interruptions and server failovers.

#### 2.1 Core Persistent Handle Infrastructure
```
Package: jcifs.internal.smb2.persistent
├── PersistentHandleContext.java     - Persistent handle create context

            "The specified network name is no longer available.", "Network access is denied.", "The network name cannot be found.",
            "No more connections can be made to this remote computer at this time because there are already as many connections as the computer can accept.",

import java.io.IOException;
import java.io.InputStream;

import jcifs.Configuration;
import jcifs.NetbiosName;

/**
 * NetBIOS session request packet implementation.
 * This packet is used to initiate NetBIOS session connections.
 */
public class SessionRequestPacket extends SessionServicePacket {

    private final Name calledName, callingName;

    SessionRequestPacket(final Configuration config) {

    /**
     * Server supports multi-credit operations
     */
    public static final int SMB2_GLOBAL_CAP_LARGE_MTU = 0x4;

    /**
     * Server supports multi-channel connections
     */
    public static final int SMB2_GLOBAL_CAP_MULTI_CHANNEL = 0x8;

    /**
     * Server supports persistent handles
     */
    public static final int SMB2_GLOBAL_CAP_PERSISTENT_HANDLES = 0x10;

  /**
   * Release any resources held by this dispatcher. Any requests that are currently being dispatched
   * should return immediately. Responses returned after shutdown will not be transmitted: their
   * socket connections have already been closed.
   */
  public open override fun close() {}

        /**
         * The share permissions.
         */
        public int permissions;
        /**
         * The maximum number of concurrent connections.
         */
        public int max_uses;
        /**
         * The current number of connections.
         */
        public int current_uses;
        /**
         * The local path of the share.
         */
        public String path;

    FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Xmn${FESS_HEAP_NEWSIZE}"
fi

# set to headless, just in case
FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Djava.awt.headless=true"

# maximum # keep-alive connections to maintain at once
FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Dhttp.maxConnections=20"

# Force the JVM to use IPv4 stack
if [ "x$FESS_USE_IPV4" != "x" ]; then
  FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Djava.net.preferIPv4Stack=true"

- MinIO object storage set up per <https://docs.min.io/community/minio-object-store/index.html>
- Veeam requires TLS connections to the object storage.  This can be configured per <https://docs.min.io/community/minio-object-store/operations/network-encryption.html>
- The S3 bucket, Access Key and Secret Key have to be created before and outside of Veeam.

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;

/**
 * FtpAuthentication class holds the authentication information for FTP connections.
 * It includes server address, port number, username, and password.
 * It also provides a method to check if the authentication matches a given FTP path.
 *
 * @author shinsuke
 */
public class FtpAuthentication {

import jcifs.smb1.dcerpc.msrpc.lsarpc;
import jcifs.smb1.dcerpc.msrpc.netdfs;
import jcifs.smb1.dcerpc.msrpc.samr;
import jcifs.smb1.dcerpc.msrpc.srvsvc;

/**
 * DCERPC binding information for RPC connections.
 * This class manages the binding parameters and interface registry for DCERPC communications.
 */
public class DcerpcBinding {

    private static HashMap INTERFACES;

    static {