// upload IDs collected.
	var uploadIDs []string

	for range 2 {
		// initiate new multipart uploadID.
		res, err := obj.NewMultipartUpload(context.Background(), bucketName, objectName, opts)
		if err != nil {
			// Failed to create NewMultipartUpload, abort.
			t.Fatalf("MinIO %s : <ERROR>  %s", instanceType, err)
		}

		uploadIDs = append(uploadIDs, res.UploadID)
	}

	err = decoder.Decode(newResponse)
	c.Assert(err, nil)
	c.Assert(len(newResponse.UploadID) > 0, true)
	// uploadID to be used for rest of the multipart operations on the object.
	uploadID := newResponse.UploadID

	// content for the part to be uploaded.
	buffer1 := bytes.NewReader([]byte("hello world"))
	// HTTP request for the part to be uploaded.

    /** The key of the message: Uploaded a synonym file. */
    public static final String SUCCESS_upload_synonym_file = "{success.upload_synonym_file}";

    /** The key of the message: Uploaded a protwords file. */
    public static final String SUCCESS_upload_protwords_file = "{success.upload_protwords_file}";

    /** The key of the message: Uploaded a stopwords file. */

	opts.Internal.SourceMTime = time.Time{} // this value is saved properly in CompleteMultipartUpload()
	var uploadID string
	attempts := 1
	for attempts <= 3 {
		nctx, cancel := context.WithTimeout(ctx, time.Minute)
		uploadID, err = c.NewMultipartUpload(nctx, bucket, object, opts)
		cancel()
		if err == nil {
			break
		}