I have a similar problem when uploading a file larger than 4GB (FTP mode). File received properly but JFileUpload indicates "Completing Upload" and hangs. No errors reported or displayed.

Given the following relevant parameters: mode=ftp resume=true overwrite=false retry=99 template=":filename:-:timestamp:" preprocessingfilter=archiver 1. Selected file(s) to upload are compressed into a single ZIP file. 2. Timestamp is appended to ZIP filename. 3. Upload commences. 4. Network connect...