this.calledName = null;
            }
        }
        else {
            this.calledName = null;
        }

        return this.calledName;
    }


    /*
     * There are three degrees of state that any NbtAddress can have.
     * 
     * 1) IP Address - If a dot-quad IP string is used with getByName (or used
     * to create an NbtAddress internal to this netbios package), no query is

special circumstances.

  For example, on rare occasions, there may be a special need to
encourage the widest possible use of a certain library, so that it becomes
a de-facto standard.  To achieve this, non-free programs must be
allowed to use the library.  A more frequent case is that a free
library does the same job as widely used non-free libraries.  In this
case, there is little to gain by limiting the free library to free

import jcifs.internal.smb2.nego.Smb2NegotiateResponse;
import jcifs.internal.smb2.tree.Smb2TreeConnectRequest;
import jcifs.internal.smb2.tree.Smb2TreeDisconnectRequest;


class SmbTreeImpl implements SmbTreeInternal {

    private static final Logger log = LoggerFactory.getLogger(SmbTreeImpl.class);

    private static AtomicLong TREE_CONN_COUNTER = new AtomicLong();

    /*
     * 0 - not connected
     * 1 - connecting

     * If enabled, SmbFile instances starting with their first use will hold a reference to their tree.
     * This means that trees/sessions/connections won't be idle-disconnected even if there are no other active
     * references (currently executing code, file descriptors).
     * 
     * Depending on the usage scenario, this may have some benefit as there won't be any delays for restablishing these

            break;
        case SMB2_LOGOFF:
            c = "SMB2_LOGOFF";
            break;
        case SMB2_TREE_CONNECT:
            c = "SMB2_TREE_CONNECT";
            break;
        case SMB2_TREE_DISCONNECT:
            c = "SMB2_TREE_DISCONNECT";
            break;
        case SMB2_CREATE:
            c = "SMB2_CREATE";
            break;
        case SMB2_CLOSE:

    static final byte SMB_COM_FIND_CLOSE2        = (byte)0x34;
    static final byte SMB_COM_TREE_DISCONNECT    = (byte)0x71;
    static final byte SMB_COM_NEGOTIATE          = (byte)0x72;
    static final byte SMB_COM_SESSION_SETUP_ANDX = (byte)0x73;
    static final byte SMB_COM_LOGOFF_ANDX        = (byte)0x74;
    static final byte SMB_COM_TREE_CONNECT_ANDX  = (byte)0x75;
    static final byte SMB_COM_NT_TRANSACT        = (byte)0xA0;

     */
    @Override
    public List<FileNotifyInformation> watch () throws CIFSException {
        if ( !this.handle.isValid() ) {
            throw new SmbException("Watch was broken by tree disconnect");
        }
        try ( SmbTreeHandleImpl th = this.handle.getTree() ) {

            CommonServerMessageBlockRequest req;
            NotifyResponse resp = null;
            if ( th.isSMB2() ) {

                    .unwrap(SmbTransportInternal.class);
                  SmbSession sess = trans.unwrap(SmbTransportInternal.class).getSmbSession(c, getTestServer(), null);
                  SmbTreeInternal tree = sess.unwrap(SmbSessionInternal.class).getSmbTree(getTestShare(), null).unwrap(SmbTreeInternal.class) ) {

                if ( trans.isSMB2() ) {

            c = "SMB_COM_NEGOTIATE";
            break;
        case SMB_COM_SESSION_SETUP_ANDX:
            c = "SMB_COM_SESSION_SETUP_ANDX";
            break;
        case SMB_COM_TREE_CONNECT_ANDX:
            c = "SMB_COM_TREE_CONNECT_ANDX";
            break;
        case SMB_COM_QUERY_INFORMATION:
            c = "SMB_COM_QUERY_INFORMATION";
            break;
        case SMB_COM_CHECK_DIRECTORY:

     * 
     * @return this pipe's output stream
     * @throws SmbException
     * @throws
     */
    @Override
    SmbPipeOutputStream getOutput () throws CIFSException;


    /**
     * @return tree connection
     * @throws SmbException
     * @throws CIFSException
     */
    SmbTreeHandleInternal ensureTreeConnected () throws CIFSException;


    /**
     * @return file handle