/** Whether AES-256 encryption is enabled */
    protected boolean aes256Enabled = true;
    /** Whether to use SMB2/SMB3 leases for caching */
    protected boolean useLease = true;
    /** Lease timeout in milliseconds */
    protected int leaseTimeout = 30000;
    /** Maximum number of concurrent leases */
    protected int maxLeases = 1000;
    /** Preferred lease version (1 or 2) */

     *
     * @return whether to force extended security usage
     */
    boolean isForceExtendedSecurity();

    /**
     * Property {@code jcifs.smb.client.useLease} (boolean, default true)
     *
     * @return whether to use SMB2/SMB3 leases for caching
     * @since 2.2
     */
    boolean isUseLease();

    /**