} catch (Exception e) {
                log.debug("Error closing channel", e);
            }
        }
        
        channels.clear();
    }
}
```

### 4.4 Channel Load Balancer
```java
package jcifs.internal.smb2.multichannel;

import java.util.*;
import java.util.concurrent.ThreadLocalRandom;

public class ChannelLoadBalancer {

        // Shutdown scheduler
        scheduler.shutdown();
        
        // Close RPC client
        if (rpcClient != null) {
            rpcClient.close();
        }
    }
}
```

### 4.4 Witness RPC Client
```java
package jcifs.internal.witness;

import jcifs.dcerpc.*;
import jcifs.dcerpc.rpc.*;

public class WitnessRpcClient implements AutoCloseable {
    private final DcerpcHandle handle;

        pos += 8;
        final int userOff = writeSecurityBuffer(type3, 36, userBytes);
        pos += 8;
        final int wsOff = writeSecurityBuffer(type3, 44, workstationBytes);
        pos += 8;
        final int skOff = writeSecurityBuffer(type3, 52, sessionKeyBytes);
        pos += 8;

        writeULong(type3, pos, getFlags());
        pos += 4;

    request concurrency.

 *  **Fix: Lazily initialize the response cache.** This avoids strict mode
    warnings when initializing OkHttp on Android‘s main thread.

 *  **Fix: Disable ALPN on Android 4.4.** That release of the feature was
    unstable and prone to native crashes in the underlying OpenSSL code.
 *  Fix: Don't send both `If-None-Match` and `If-Modified-Since` cache headers
    when both are applicable.

  public void testSetConcurrencyLevel() {
    // round up to the nearest power of two

    checkConcurrencyLevel(1, 1);
    checkConcurrencyLevel(2, 2);
    checkConcurrencyLevel(3, 4);
    checkConcurrencyLevel(4, 4);
    checkConcurrencyLevel(5, 8);
    checkConcurrencyLevel(6, 8);
    checkConcurrencyLevel(7, 8);
    checkConcurrencyLevel(8, 8);
  }

  public void testSetConcurrencyLevel() {
    // round up to the nearest power of two

    checkConcurrencyLevel(1, 1);
    checkConcurrencyLevel(2, 2);
    checkConcurrencyLevel(3, 4);
    checkConcurrencyLevel(4, 4);
    checkConcurrencyLevel(5, 8);
    checkConcurrencyLevel(6, 8);
    checkConcurrencyLevel(7, 8);
    checkConcurrencyLevel(8, 8);
  }

          "unit": "short"
        },
        "overrides": []
      },
      "gridPos": {
        "h": 3,
        "w": 3,
        "x": 6,
        "y": 9
      },
      "id": 44,
      "maxDataPoints": 100,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "horizontal",
        "reduceOptions": {

- github.com/containerd/console: [v1.0.0 → v1.0.1](https://github.com/containerd/console/compare/v1.0.0...v1.0.1)
- github.com/containerd/containerd: [v1.4.1 → v1.4.4](https://github.com/containerd/containerd/compare/v1.4.1...v1.4.4)
- github.com/coredns/corefile-migration: [v1.0.10 → v1.0.11](https://github.com/coredns/corefile-migration/compare/v1.0.10...v1.0.11)

github.com/jcmturner/goidentity/v6 v6.0.1/go.mod h1:X1YW3bgtvwAXju7V3LCIMpY0Gbxyjn/mY9zx4tFonSg=
github.com/jcmturner/gokrb5/v8 v8.4.4 h1:x1Sv4HaTpepFkXbt2IkL29DXRf8sOfZXo8eRKh687T8=
github.com/jcmturner/gokrb5/v8 v8.4.4/go.mod h1:1btQEpgT6k+unzCwX1KdWMEwPPkkgBtP+F6aCACiMrs=
github.com/jcmturner/rpc/v2 v2.0.3 h1:7FXXj8Ti1IaVFpSAziCZWNzbNuZmnvw/i6CqLNdWfZY=

- github.com/containerd/cgroups: [0dbf7f0 → v1.0.1](https://github.com/containerd/cgroups/compare/0dbf7f0...v1.0.1)
- github.com/containerd/containerd: [v1.4.4 → v1.4.11](https://github.com/containerd/containerd/compare/v1.4.4...v1.4.11)
- github.com/containerd/continuity: [aaeac12 → v0.1.0](https://github.com/containerd/continuity/compare/aaeac12...v0.1.0)