Fileupload does not work in Primefaces

Question

I have some issues with the in Primefaces. At first I tried the snippets in the Documentation of Fileupload starting on page 2018. The firs

Answer 1

The documentation says

Advanced File Upload

FileUploadListener is the way to access the uploaded files in this mode, when a file is uploaded defined fileUploadListener is processed with a FileUploadEvent as the parameter.

Add the fileUploadListener with a FileUploadEvent parameter. Make the button AJAXical. Lose the enctype. Don't bother with fileUpload's value.