return this.delegate.getChannelHealthCheckInterval();
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Configuration#getHandleStateDirectory()
     */
    @Override
    public String getHandleStateDirectory() {
        return this.delegate.getHandleStateDirectory();
    }

    @Override
    public boolean isUseDirectoryLeasing() {
        return this.delegate.isUseDirectoryLeasing();
    }

    return getLongProperty(DURABLE_HANDLE_TIMEOUT, 120000);  // 2 minutes
}

public int getHandleReconnectRetries() {
    return getIntProperty(HANDLE_RECONNECT_RETRIES, 3);
}

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

## 8. Testing Strategy

### 8.1 Unit Tests
```java

    int getChannelHealthCheckInterval();

    /**
     * Property {@code jcifs.smb.client.handleStateDirectory}
     *
     * @return directory to store persistent handle state
     */
    String getHandleStateDirectory();

    /**
     * Property {@code jcifs.smb.client.useDirectoryLeasing} (boolean, default true)
     *
     * @return whether to use directory leasing for caching
     */

        return this.durableHandleTimeout;
    }

    @Override
    public int getHandleReconnectRetries() {
        return this.handleReconnectRetries;
    }

    @Override
    public String getHandleStateDirectory() {
        return this.handleStateDirectory;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Configuration#isUseMultiChannel()
     */
    @Override