*
     * @return statistics instance
     */
    public RdmaStatistics getStatistics() {
        return statistics;
    }

    // Delegate all SmbTransportInternal methods to the wrapped transport

    @Override
    public boolean hasCapability(int cap) throws SmbException {
        return delegate.hasCapability(cap);
    }

    @Override
    public boolean isDisconnected() {

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.math.BigInteger;
import org.jspecify.annotations.Nullable;

/**
 * A wrapper class for unsigned {@code long} values, supporting arithmetic operations.
 *
 * <p>In some cases, when speed is more important than code readability, it may be faster simply to

    //                                                                           =========
    /**
     * Gets the login manager for this admin action.
     *
     * @return the login manager wrapped in OptionalThing
     */
    @Override
    protected OptionalThing<LoginManager> myLoginManager() {
        return OptionalThing.of(fessLoginAssist);
    }

- `DeferredFileOutputStream` for large responses (temp files for >1MB)
- Connection pooling with limits
- Background temp file deletion via `FileUtil.deleteInBackground()`

**Fault Tolerance**:
- `FaultTolerantClient` wrapper (retry, circuit breaker)
- Graceful degradation (e.g., robots.txt parsing continues on errors)

---

## Key Components

### Crawler (`Crawler.java`)

Main orchestrator for crawling operations.

	globalSiteResyncMetrics *siteResyncMetrics

	// Is set to true when Bucket federation is requested
	// and is 'true' when etcdConfig.PathPrefix is empty
	globalBucketFederation bool

	// Allocated DNS config wrapper over etcd client.
	globalDNSConfig dns.Store

	// GlobalKMS initialized KMS configuration
	GlobalKMS *kms.KMS

	// Common lock for various subsystems performing the leader tasks
	globalLeaderLock *sharedLock

   *
   * <p>Failure to follow this advice may result in non-deterministic behavior.
   *
   * <p>The returned queue will be serializable if the specified queue is serializable.
   *
   * @param queue the queue to be wrapped in a synchronized view
   * @return a synchronized view of the specified queue
   * @since 14.0
   */
  @J2ktIncompatible // Synchronized

        assertEquals(flags, parsed.getContextFlags(), "Context flags should parse from DER BIT STRING");
    }

    @Test
    @DisplayName("Sanity: toByteArray produces APPLICATION class wrapper and valid structure")
    void testToByteArrayStructureSanity() throws Exception {
        NegTokenInit init =

          throw IOException("TLS tunnel buffered too many bytes!")
        }

        call.eventListener.secureConnectStart(call)

        // Create the wrapper over the connected socket.
        val sslSocket =
          route.address.sslSocketFactory.createSocket(
            rawSocket,
            route.address.url.host,
            route.address.url.port,

     * Test for unwrap with nested wrapping.
     * Verifies that unwrap works correctly with multiple levels of wrapping.
     */
    @Test
    void testUnwrap_nestedWrapping() {
        // Create a chain of wrapped trees
        CustomSmbTree innerTree = mock(CustomSmbTree.class);
        ExtendedSmbTree middleTree = mock(ExtendedSmbTree.class);

        when(smbTree.unwrap(ExtendedSmbTree.class)).thenReturn(middleTree);

        } catch (final Exception e) {
            return false;
        }
    }

    /**
     * Formats an IP address string for use in a URL.
     * IPv6 addresses are wrapped in brackets, IPv4 addresses are returned as-is.
     *
     * @param address the IP address string to format
     * @return the formatted address (IPv6 with brackets, IPv4 unchanged)
     */