return sb.toString();
    }

    /**
     * Checks if the client is connected to the witness service.
     *
     * @return true if connected
     */
    public boolean isConnected() {
        return connected && rpcHandle != null;
    }

    @Override
    public void close() {
        if (connected && rpcHandle != null) {
            try {

import jcifs.internal.smb2.ServerMessageBlock2;
import jcifs.internal.smb2.ServerMessageBlock2Response;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Tree Connect response message.
 *
 * This response contains information about the connected
 * tree, including share type and capabilities.
 *
 * @author mbechler
 */
public class Smb2TreeConnectResponse extends ServerMessageBlock2Response implements TreeConnectResponse {

  /**
   * Returns true if the edges in this graph are directed. Directed edges connect a {@link
   * EndpointPair#source() source node} to a {@link EndpointPair#target() target node}, while
   * undirected edges connect a pair of nodes to each other.
   */
  boolean isDirected();

  /**
   * Returns true if this graph allows self-loops (edges that connect a node to itself). Attempting

                        return null;
                    }
                    // failure to connect
                    throw new SmbException("Tree disconnected while waiting for connection");
                }
                if (before == 2) {
                    // concurrently connected
                    return null;
                }

                if (log.isDebugEnabled()) {

    class ConnectionLifecycleTests {

        @Test
        @DisplayName("connect should return true if already connected")
        void shouldReturnTrueIfAlreadyConnected() throws TransportException {
            transport.setState(3); // Connected
            assertTrue(transport.connect(1000));
        }

        @Test
        @DisplayName("connect should throw TransportException on connection failure")

      }

      return when {
        tcpConnectThrowable != null -> {
          events += "plan $id TCP connect failed"
          ConnectResult(this, nextPlan = connectTcpNextPlan, throwable = tcpConnectThrowable)
        }

        canceled -> {
          events += "plan $id TCP connect canceled"
          ConnectResult(this, nextPlan = connectTcpNextPlan, throwable = IOException("canceled"))
        }

            if (n <= 0) {
                break;
            }
            i += n;
        }

        return i;
    }

    /* state values
     * 0 - not connected
     * 1 - connecting
     * 2 - run connected
     * 3 - connected
     * 4 - error
     */
    int state = 0;

    String name = "Transport" + id++;
    Thread thread;
    TransportException te;

    /**

        this.connection = connection;
        requestProperties = new HashMap();
    }

    @Override
    public void connect() throws IOException {
        if (connected) {
            return;
        }
        connection.connect();
        connected = true;
    }

    private void handshake() throws IOException {
        if (handshakeComplete) {
            return;
        }

import jcifs.internal.smb1.AndXServerMessageBlock;
import jcifs.internal.smb1.ServerMessageBlock;

/**
 * SMB1 Tree Connect AndX response implementation.
 * Handles server responses to tree connect requests in SMB1 protocol, providing
 * information about the connected share including service type and DFS capabilities.
 *
 * @author mbechler
 */

    public SmbTreeHandleImpl connectWrapException(final SmbResourceLocatorImpl loc) throws SmbException {
        try {
            return connect(loc);
        } catch (final SmbException se) {
            throw se;
        } catch (final IOException ioe) {
            throw new SmbException("Failed to connect to server", ioe);
        }
    }

    /**
     * @param loc
     * @return tree handle
     * @throws IOException