}

// TestHeader - Validates the error response for an attempt to fetch non-existent object.
func (s *TestSuiteCommon) TestHeader(c *check) {
	// generate a random bucket name.
	bucketName := getRandomBucketName()
	// obtain HTTP request to fetch an object from non-existent bucket/object.
	request, err := newTestSignedRequest(http.MethodGet, getGetObjectURL(s.endPoint, bucketName, "testObject"),

			return nil, err
		}

		// if object doesn't exist and not a replication request return error for If-Match conditional requests
		// If-None-Match should be allowed to proceed for non-existent objects
		if err != nil && !opts.ReplicationRequest && opts.HasIfMatch && (isErrObjectNotFound(err) || isErrVersionNotFound(err)) {
			return nil, err
		}
	}

	userDefined := cloneMSS(opts.UserDefined)

		// Case with invalid object names.
		4: {bucketName: bucket, inputData: []byte(""), expectedError: ObjectNameInvalid{Bucket: bucket, Object: ""}},

		// Valid object and bucket names but non-existent bucket.
		5: {bucketName: "abc", objName: "def", inputData: []byte(""), expectedError: BucketNotFound{Bucket: "abc"}},

		// Input to replicate Md5 mismatch.
		6: {

	for _, fivs := range versionsMap {
		// Removal of existing versions and adding a delete marker in the same
		// request is supported. At the same time, we cannot allow adding
		// two delete markers on top of any object. To avoid this situation,
		// we will sort deletions to execute existing deletion first,
		// then add only one delete marker if requested

				VersionID:  objInfo.VersionID,
			},
		}
	}
	names = append(names, ObjectToDelete{
		ObjectV: ObjectV{
			ObjectName: "dir/obj1",
			VersionID:  mustGetUUID(), // add a non-existent UUID.
		},
	})

	_, delErrs := obj.DeleteObjects(ctx, bucketName, names, ObjectOptions{
		Versioned: true,
	})
	for i := range delErrs {
		if delErrs[i] != nil {

		return
	}
	opts := ObjectOptions{}
	if err := abortMultipartUpload(ctx, bucket, object, uploadID, opts); err != nil {
		switch err.(type) {
		case InvalidUploadID:
			// Do not have return an error for non-existent upload-id
		default:
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
	}

	writeSuccessNoContent(w)
}

// ListObjectPartsHandler - List object parts

	}

	// Attempting to set a non-existent policy should fail.
	userDN := "uid=dillon,ou=people,ou=swengg,dc=min,dc=io"
	_, err = s.adm.AttachPolicyLDAP(ctx, madmin.PolicyAssociationReq{
		Policies: []string{policy + "x"},
		User:     userDN,
	})
	if err == nil {
		c.Fatalf("should not be able to attach non-existent policy")
	}

	userReq := madmin.PolicyAssociationReq{

		// upload to copy back its data from the remote tier. This
		// doesn't replace the existing version, so we don't need to add
		// a free-version.
		xlMeta.AddFreeVersion(fi)
	}

	// indicates if RenameData() is called by healing.
	healing := fi.Healing()

	// Replace the data of null version or any other existing version-id
	_, ver, err := xlMeta.findVersionStr(reqVID)
	if err == nil {

- `kubectl rollout undo` now returns errors when attempting to rollback a deployment to a non-existent revision ([#70039](https://github.com/kubernetes/kubernetes/pull/70039), [@liggitt](https://github.com/liggitt))

    public void updateChild(String childName, SmbFileAttributes attrs) {
        lock.writeLock().lock();
        try {
            FileInfo existing = children.get(childName);
            FileInfo newInfo = new FileInfo(childName, attrs);
            
            if (existing == null || !existing.matches(attrs)) {
                children.put(childName, newInfo);
                hasChanges = true;