protected static final String OIC_REDIRECT_URL = "oic.redirect.url";

    /** Configuration key for OpenID Connect token server URL. */
    protected static final String OIC_TOKEN_SERVER_URL = "oic.token.server.url";

    /** Configuration key for OpenID Connect client secret. */
    protected static final String OIC_CLIENT_SECRET = "oic.client.secret";

import okhttp3.internal.tls.OkHostnameVerifier
import okhttp3.internal.toHostHeader

/**
 * A single attempt to connect to a remote server, including these steps:
 *
 *  * [TCP handshake][connectSocket]
 *  * Optional [CONNECT tunnels][connectTunnel]. When using an HTTP proxy to reach an HTTPS server
 *    we must send a `CONNECT` request, and handle authorization challenges from the proxy.
 *  * Optional [TLS handshake][connectTls].
 *

    void testTreeConnectAndDisconnect() throws Exception {
        SmbTree tree = new SmbTree(session, "testShare", "testService");

        // Mock transport.connect() to succeed
        doNothing().when(transport).connect();

        // Setup response for tree connect
        doAnswer(invocation -> {
            ServerMessageBlock request = invocation.getArgument(0);
            ServerMessageBlock response = invocation.getArgument(1);

    plan1.tcpConnectDelayNanos = 10.ms // Connect at time = 260 ms.
    plan1.tlsConnectDelayNanos = 10.ms // Connect at time = 270 ms.
    plan1.tlsConnectThrowable = IOException("boom!")

    val plan2 = plan1.createConnectTlsNextPlan()
    plan2.tcpConnectDelayNanos = 270.ms // Connect at time = 540 ms.

    val plan3 = plan0.createRetry()
    plan3.tcpConnectDelayNanos = 10.ms // Connect at time = 530 ms.

        super(connection.getURL());
        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;
        }

     *
     * @throws SmbException if the connection fails
     */
    public void connect() throws SmbException {
        try {
            super.connect(RESPONSE_TIMEOUT);
        } catch (final TransportException te) {
            throw new SmbException("Failed to connect: " + address, te);
        }
    }

    @Override
    protected void doConnect() throws IOException {
        /*

    void connectWrapException_wraps_io_and_unkhost() throws Exception {
        // Subclass to control connect() behavior
        SmbTreeConnection c = new SmbTreeConnection(ctx) {
            @Override
            public SmbTreeHandleImpl connect(SmbResourceLocatorImpl loc) throws java.io.IOException {
                throw new java.net.UnknownHostException("nohost");
            }
        };

    }
    
    @Override
    public void connect() throws IOException {
        // Establish RDMA connection
        rdmaConnection.connect();
        
        // Perform RDMA negotiate
        performRdmaNegotiation();
        
        // Continue with SMB negotiate over RDMA
        super.connect();
    }
    
    private void performRdmaNegotiation() throws IOException {

    }

    /**
     * Test that connect() calls connect() on the underlying connection.
     * @throws IOException
     */
    @Test
    void testConnect() throws Exception {
        // Act
        ntlmConnection.connect();

        // Assert
        verify(mockConnection).connect();
        // Connection should be established after connect
    }

    /**

            return transport.isSMB2();
        } catch (final SmbException e) {
            log.debug("Failed to connect for determining SMB2 support", e);
            return false;
        }
    }

    /**
     * @return whether this tree handle uses SMB3
     */
    public boolean isSMB3() {