public final void setMultipartUploadThreshold(Long multipartUploadThreshold) {
        this.multipartUploadThreshold = multipartUploadThreshold;
    }
Sets the size threshold, in bytes, for when to use multipart uploads. Uploads over this size
will automatically use a multipart upload strategy, while uploads smaller than this threshold
will use a single connection to upload the whole object.

<p>Multipart uploads are easier to recover from and also potentially faster than single part
uploads, especially when the upload parts can be uploaded in parallel as with files. Because
there is additional network communication, small uploads are still recommended to use a
single connection for the upload.</p>

@param multipartUploadThreshold Threshold in which multipart uploads will be performed.
aws-java-sdk-s3/src/main/java/com/amazonaws/services/s3/transfer/TransferManagerBuilder.java