*/
                    final String svc = this.service0;

                    /*
                     * Tree Connect And X Request / Response
                     */

                    if (log.isDebugEnabled()) {
                        log.debug("treeConnect: unc=" + unc + ",service=" + svc);
                    }

                    if (transport.isSMB2()) {

                     * so that it reconnects cleanly should the share
                     * reappear in this client's lifetime.
                     */
                    treeDisconnect(true);
                }
                throw se;
            }
        }
    }

    void treeConnect(final ServerMessageBlock andx, final ServerMessageBlock andxResponse) throws SmbException {

        }

        if (referral != null) {
            t.markDomainDfs();
        }

        try {
            if (log.isTraceEnabled()) {
                log.trace("doConnect: " + addr);
            }
            t.treeConnect(null, null);
            return t.acquire();
        } catch (final SmbAuthException sae) {
            log.debug("Authentication failed", sae);

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

        // Simulate failed tree connect
        doThrow(new SmbException("Connection failed")).when(session).send(any(ServerMessageBlock.class), any(ServerMessageBlock.class));

        assertThrows(SmbException.class, () -> tree.treeConnect(null, null));

                thread.wait(timeout); /* wait for doConnect */

                switch (state) {
                case 1: /* doConnect never returned */
                    state = 0;
                    thread = null;
                    throw new TransportException("Connection timeout");
                case 2:
                    if (te != null) { /* doConnect throw Exception */
                        state = 4; /* error */

        // Setting onConnect to null should work
        request.onConnect(null);

        assertNotNull(request);
    }

    @Test
    public void testMultipleOnConnectCalls() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");

        // Multiple onConnect calls should work (last one wins)
        request.onConnect((req, conn) -> conn.setConnectTimeout(1000));

            mockHolder[0] = mock;
            return mock;
        });
        req.timeout(3000, 5000);
        // onConnect runs AFTER timeout, so it can override
        req.onConnect((r, conn) -> {
            conn.setReadTimeout(9999);
            onConnectReadTimeout.set(conn.getReadTimeout());
        });

        // ## Act ##

                t.wait(timeout); /* wait for doConnect */

                st = this.state;
                switch (st) {
                case 1: /* doConnect never returned */
                    this.state = 6;
                    throw new ConnectionTimeoutException("Connection timeout");
                case 2:
                    if (this.te != null) { /* doConnect throw Exception */

                    /* Some pipes may require that the hostname in the tree connect
                     * be the netbios name. So if we have the netbios server name
                     * from the NTLMSSP type 2 message, and the share is IPC$, we
                     * assert that the tree connect path uses the netbios hostname.
                     */

  After the connection closed(received GOAWAY), the client's other in-flight requests won't be affected, and the client will reconnect. 
  The flag min value is 0 (off), max is .02 (1/50 requests); .001 (1/1000) is a recommended starting point.