Create a folder in document library using REST (Java)

Question

How do you create a folder in document library. I got this code right now but getting error code 403 FORBIDDEN

public void createFolder(String digest) throws ClientProtocolException, IOException {
    HttpPost request = new HttpPost(
            "http://industrial-ex/sites/tifdemo/_api/Web/Folders/add('enovia/newfolder')");
    request.addHeader("Content-Type", "application/json;odata=verbose");
    request.addHeader("X-RequestDigest", digest);
    request.addHeader("Accept", "application/json;odata=verbose");
    CloseableHttpResponse response = httpClient.execute(target, request, context);
    System.out.println("STATUS CODE: " + response.getStatusLine());
}