[by Kris Sony]

I finally worked it out.

You need to set the formAction to a normal servlet
formPanel.setAction("https://localhost/upload");
formPanel.submit();


The servlet should be a normal HttpServlet...

[by Kris Sony]

Hi

I know there are other posts on this but I just can't get this working. Any clues?

The problem seem is this is false
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
...