continue;
                }
            } catch (final SmbAuthException sae) {
                log.warn("Auth failed", sae);
            } catch (final SmbException se) {
                log.warn("Connection failed", se);
                if (se.getNtStatus() != NtStatus.NT_STATUS_UNSUCCESSFUL) {
                    throw se;
                }
            }
            if (dirents[i].isDirectory()) {

 * HTTP/2 support allows all requests to the same host to share a socket.
 * Connection pooling reduces request latency (if HTTP/2 isn’t available).
 * Transparent GZIP shrinks download sizes.
 * Response caching avoids the network completely for repeat requests.

OkHttp perseveres when the network is troublesome: it will silently recover from common connection

    CipherSuite.TLS_AES_256_GCM_SHA384,
    CipherSuite.TLS_CHACHA20_POLY1305_SHA256,
    CipherSuite.TLS_AES_128_CCM_SHA256,
    CipherSuite.TLS_AES_128_CCM_8_SHA256,
  )

/**
 * A TLS 1.3 only Connection Spec. This will be eventually be exposed
 * as part of MODERN_TLS or folded into the default OkHttp client once published and
 * available in JDK11 or Conscrypt.
 */
private val TLS_13 =
  ConnectionSpec

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

/**
 * Unit tests for {@link Handler}.
 *
 * Tests the SMB URL handler implementation including:
 * - Default port configuration
 * - URL connection opening
 * - URL creation and parsing
 */
public class HandlerTest {

    private final Handler handler = new Handler();

    @BeforeAll
    static void setupProtocolHandler() {

import jcifs.dcerpc.msrpc.samr;
import jcifs.dcerpc.msrpc.srvsvc;

/**
 * DCE/RPC binding information for connecting to remote endpoints.
 * This class encapsulates the details needed to establish a DCE/RPC connection.
 */
public class DcerpcBinding {

    private static final Map<String, String> INTERFACES = new HashMap<>();

    static {
        INTERFACES.put("srvsvc", srvsvc.getSyntax());

        when(filterConfig.getInitParameter(anyString())).thenAnswer(invocation -> initParams.get(invocation.getArgument(0)));

        filter.init(filterConfig);

        // Test request over insecure connection
        when(request.getHeader("Authorization")).thenReturn(null);
        when(request.isSecure()).thenReturn(false);
        when(httpSession.getAttribute("NtlmHttpAuth")).thenReturn(null);

          else -> "GET"
        },
        body,
      ),
  )

  init {
    val connectionHeader = headers["Connection"]
    require(body == null || !"upgrade".equals(connectionHeader, ignoreCase = true)) {
      "expected a null request body with 'Connection: upgrade'"
    }
  }

  fun header(name: String): String? = headers[name]

  fun headers(name: String): List<String> = headers.values(name)

    int RPC_PT_CANCEL = 0x12;
    /**
     * Acknowledgment packet type
     */
    int RPC_PT_ACK = 0x13;
    /**
     * Reject packet type
     */
    int RPC_PT_REJECT = 0x14;
    /**
     * Connection-oriented cancel packet type
     */
    int RPC_PT_CO_CANCEL = 0x15;
    /**
     * Orphaned packet type
     */
    int RPC_PT_ORPHANED = 0x16;

    // RPC_C_PF_ flags (packet flags)
    /**

    if (witnessClient != null) {
        witnessClient.close();
    }
    super.logoff();
}
```

### 5.2 Tree Connection Integration
```java
// In SmbTree.java
public void connectWithWitnessSupport() throws IOException {
    // Perform normal tree connection
    super.connect();
    
    // Register for witness notifications for this share
    if (session.isWitnessEnabled()) {

        SearchEngineClient searchEngineClient = new SearchEngineClient() {
            @Override
            public PingResponse ping() {
                throw new RuntimeException("Connection failed");
            }
        };

        SystemHelper systemHelper = new SystemHelper() {
            @Override
            public String getHostname() {
                return "test-hostname";