final UniAddress dc = new UniAddress(addr);
        final SmbTransport trans = SmbTransport.getSmbTransport(dc, 0);
        if (USERNAME == null) {
            trans.connect();
            if (LogStream.level >= 3) {
                SmbTransport.log.println("""
                        Default credentials (jcifs.smb1.smb1.client.username/password)\

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.smb;

import jcifs.CIFSException;
import jcifs.SmbSession;
import jcifs.SmbTransport;
import jcifs.SmbTree;

/**
 * Internal SMB session interface providing extended session management capabilities.
 * Defines methods for internal session operations and state management.
 *
 * @author mbechler

@ExtendWith(MockitoExtension.class)
class ChannelLoadBalancerTest {

    @Mock
    private ChannelManager mockChannelManager;

    @Mock
    private SmbTransport mockTransport1;

    @Mock
    private SmbTransport mockTransport2;

    @Mock
    private CommonServerMessageBlock mockMessage;

    private ChannelLoadBalancer loadBalancer;
    private ChannelInfo channel1;
    private ChannelInfo channel2;

    @BeforeEach

import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.CIFSException;
import jcifs.SmbTransport;
import jcifs.SmbTree;

/**
 * Tests for SmbSessionInternal interface using Mockito to exercise
 * method contracts, checked exceptions, and interactions with collaborators.
 */
@ExtendWith(MockitoExtension.class)

import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

class SmbComSessionSetupAndXTest {

    @Mock
    private SmbSession mockSession;
    @Mock
    private SmbTransport mockTransport;
    @Mock
    private ServerMessageBlock mockAndx;
    @Mock
    private NtlmPasswordAuthentication mockAuth;

    private SmbComSessionSetupAndX setupAndX;

    @BeforeEach

        }
    }

    private void attemptRecoveryWithTransport(ChannelInfo channel, FailoverState state, SmbTransport newTransport) {
        try {
            log.info("Attempting to recover channel {}", channel.getChannelId());

            // Disconnect existing transport
            SmbTransport oldTransport = channel.getTransport();
            if (oldTransport != null) {
                try {

     * @return whether (non-exclusive) connection is in the pool
     */
    public boolean contains(final SmbTransport trans) {
        cleanup();
        return this.connections.contains(trans);
    }

    @Override
    public void removeTransport(final SmbTransport trans) {
        if (log.isDebugEnabled()) {

                service = service0;

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

                if (LogStream.level >= 4) {
                    SmbTransport.log.println("treeConnect: unc=" + unc + ",service=" + service);
                }

                final SmbComTreeConnectAndXResponse response = new SmbComTreeConnectAndXResponse(andxResponse);

class SmbComNegotiateResponseTest {

    private SmbTransport.ServerData serverData;
    private SmbComNegotiateResponse response;

    @BeforeEach
    void setUp() throws UnknownHostException {
        // To instantiate the non-static inner class ServerData, we need an instance of the outer class SmbTransport.
        UniAddress uniAddress = new UniAddress(InetAddress.getByName("127.0.0.1"));

        valid = false;
    }
}
```

### 4.3 RDMA Transport
```java
package jcifs.internal.smb2.rdma;

import jcifs.smb.SmbTransport;
import jcifs.internal.smb2.ServerMessageBlock2;

public class RdmaTransport extends SmbTransport {
    private final RdmaConnection rdmaConnection;
    private final RdmaProvider provider;
    private final RdmaBufferManager bufferManager;