byte[] zeroFileId = new byte[16];
        Smb2FlushRequest zeroRequest = new Smb2FlushRequest(mockConfig, zeroFileId);
        testFileIdInRequest(zeroRequest, zeroFileId);

        // Test with all ones
        byte[] onesFileId = new byte[16];
        Arrays.fill(onesFileId, (byte) 0xFF);
        Smb2FlushRequest onesRequest = new Smb2FlushRequest(mockConfig, onesFileId);

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;
import jcifs.internal.smb2.io.Smb2WriteRequest;
import jcifs.internal.smb2.ioctl.Smb2IoctlRequest;
import jcifs.internal.smb2.lock.Smb2Lock;