import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Query Directory request message. This command is used to enumerate the contents
 * of a directory on the server.
 *
 * @author mbechler
 *
 */
public class Smb2QueryDirectoryRequest extends ServerMessageBlock2Request<Smb2QueryDirectoryResponse> implements RequestWithFileId {

    /**
     * File information class for basic directory information.
     */

        final SmbTreeHandleImpl th = getTreeHandle();
        final Smb2QueryDirectoryRequest query = new Smb2QueryDirectoryRequest(th.getConfig(), this.fileId);
        query.setFileName(this.getWildcard());
        query.setFileIndex(results[results.length - 1].getFileIndex());
        query.setQueryFlags(Smb2QueryDirectoryRequest.SMB2_INDEX_SPECIFIED);
        try {

                // Access chained Smb2QueryDirectoryRequest via reflection
                Smb2QueryDirectoryRequest q = (Smb2QueryDirectoryRequest) getNextOf(create);

                // Provide a query response with two entries
                Smb2QueryDirectoryResponse qr = new Smb2QueryDirectoryResponse(config, Smb2QueryDirectoryRequest.FILE_BOTH_DIRECTORY_INFO);

        assertEquals(0x01, Smb2QueryDirectoryRequest.FILE_DIRECTORY_INFO);
        assertEquals(0x02, Smb2QueryDirectoryRequest.FILE_FULL_DIRECTORY_INFO);
        assertEquals(0x03, Smb2QueryDirectoryRequest.FILE_BOTH_DIRECTORY_INFO);
        assertEquals(0x0C, Smb2QueryDirectoryRequest.FILE_NAMES_INFO);
        assertEquals(0x24, Smb2QueryDirectoryRequest.FILE_ID_BOTH_DIRECTORY_INFO);

    }

    @Test
    @DisplayName("Test constructor initializes with config and expectInfoClass")
    void testConstructor() {
        byte expectInfoClass = Smb2QueryDirectoryRequest.FILE_BOTH_DIRECTORY_INFO;

        response = new Smb2QueryDirectoryResponse(mockConfig, expectInfoClass);

        assertNotNull(response);

import java.util.concurrent.atomic.AtomicInteger;

import jcifs.internal.CommonServerMessageBlock;
import jcifs.internal.smb2.ServerMessageBlock2Request;
import jcifs.internal.smb2.info.Smb2QueryDirectoryRequest;
import jcifs.internal.smb2.info.Smb2QueryInfoRequest;
import jcifs.internal.smb2.info.Smb2SetInfoRequest;
import jcifs.internal.smb2.io.Smb2ReadRequest;
import jcifs.internal.smb2.io.Smb2WriteRequest;

/**

import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.Configuration;
import jcifs.internal.smb2.create.Smb2CloseRequest;
import jcifs.internal.smb2.info.Smb2QueryDirectoryRequest;
import jcifs.internal.smb2.info.Smb2QueryInfoRequest;
import jcifs.internal.smb2.info.Smb2SetInfoRequest;
import jcifs.internal.smb2.io.Smb2FlushRequest;
import jcifs.internal.smb2.io.Smb2ReadRequest;

        this.results = infos.toArray(new FileEntry[infos.size()]);
        return bufferIndex - start;
    }

    private FileBothDirectoryInfo createFileInfo() {
        if (this.expectInfoClass == Smb2QueryDirectoryRequest.FILE_BOTH_DIRECTORY_INFO) {
            return new FileBothDirectoryInfo(getConfig(), true);
        }
        return null;
    }

    
    private boolean isMetadataOperation(SMBMessage message) {
        return message instanceof Smb2QueryInfoRequest
            || message instanceof Smb2SetInfoRequest
            || message instanceof Smb2QueryDirectoryRequest;
    }
}
```

### 4.5 Channel Failover Handler
```java
package jcifs.internal.smb2.multichannel;

import java.util.concurrent.*;

public class ChannelFailover {