*/
  private static void assertHashStringWithSurrogatesEquivalence(
      HashFunction hashFunction, Random random) {
    int size = random.nextInt(8) + 1;
    char[] chars = new char[size];
    for (int i = 0; i < chars.length; i++) {
      chars[i] = random.nextBoolean() ? randomLowSurrogate(random) : randomHighSurrogate(random);
    }

   */
  private static void assertHashStringWithSurrogatesEquivalence(
      HashFunction hashFunction, Random random) {
    int size = random.nextInt(8) + 1;
    char[] chars = new char[size];
    for (int i = 0; i < chars.length; i++) {
      chars[i] = random.nextBoolean() ? randomLowSurrogate(random) : randomHighSurrogate(random);
    }

                    entry.invalidate();
                }
                invalidateChildren(child);  // Recursive
            }
        }
    }
}
```

## 8. Testing Strategy

### 8.1 Unit Tests
```java
@Test
public void testDirectoryCacheEntry() {
    DirectoryCacheEntry entry = new DirectoryCacheEntry(
        "/test/dir", new Smb2LeaseKey(), DirectoryCacheScope.IMMEDIATE_CHILDREN);
    

    
    // Should work even if RDMA provider is not available
    file.createNewFile();
    assertTrue(file.exists());
}
```

## 8. Performance Monitoring

### 8.1 RDMA Statistics
```java
public class RdmaStatistics {
    private final AtomicLong rdmaReads = new AtomicLong();
    private final AtomicLong rdmaWrites = new AtomicLong();

    webServer.dispatcher =
      object : Dispatcher() {
        override fun dispatch(request: RecordedRequest): MockResponse =
          upgradeResponse(request)
            .body(Buffer().write("81".decodeHex())) // Truncated frame.
            .removeHeader("Content-Length")
            .build()
      }
    val webSocket: WebSocket = newWebSocket()
    clientListener.assertOpen()

}

public String getHandleStateDirectory() {
    return getProperty(HANDLE_STATE_DIR, 
        System.getProperty("user.home") + "/.jcifs/handles");
}
```

## 8. Testing Strategy

### 8.1 Unit Tests
```java
package jcifs.tests.smb3;

import org.junit.Test;
import static org.junit.Assert.*;

public class PersistentHandleTest {
    
    @Test

            buffer[errorStart + 2] = 1; // error context count
            SMBUtil.writeInt4(5, buffer, errorStart + 4); // byte count

            // Error data
            buffer[errorStart + 8] = 1;
            buffer[errorStart + 9] = 2;
            buffer[errorStart + 10] = 3;
            buffer[errorStart + 11] = 4;
            buffer[errorStart + 12] = 5;

            return buffer;
        }

    }
    
    public boolean isNotificationReceived() {
        return notificationReceived;
    }
}
```

## 8. Error Handling and Reliability

### 8.1 Witness Service Unavailability
```java
public class WitnessServiceErrorHandler {
    private final WitnessClient client;
    private final ScheduledExecutorService scheduler;

    
    // Multi-channel should be faster
    assertTrue(multiChannelTime < singleChannelTime * 0.7);  // At least 30% improvement
}
```

## 8. Performance Metrics

### 8.1 Channel Statistics
```java
public class MultiChannelStatistics {
    private final Map<String, ChannelStatistics> channelStats;
    
    public class ChannelStatistics {

pkg debug/dwarf, const AttrSpecification = 71
pkg debug/dwarf, const AttrStartScope = 44
pkg debug/dwarf, const AttrStaticLink = 72
pkg debug/dwarf, const AttrStmtList = 16
pkg debug/dwarf, const AttrStride = 81
pkg debug/dwarf, const AttrStrideSize = 46
pkg debug/dwarf, const AttrStringLength = 25
pkg debug/dwarf, const AttrTrampoline = 86
pkg debug/dwarf, const AttrType = 73
pkg debug/dwarf, const AttrUpperBound = 47