Problem is fixed with commons-fileupload 1.1.1. Thanks Helmut
>Ok, > >update to commons-fileupload 1.1.1 should fixed the problem. >See https://issues.apache.org/jira/browse/TOBAGO-257 > >Regards > >Bernd > >H. Swaczinna wrote: >> Hello, >> >> my fileupload works fine now, but the NotSerializableException >> still occurs in two cases: >> >> First, when submitting without file name entered in the file field. >> Second, when the selected file is not of the type specified in the >> validateFileItem tag. >> >> Not my fault this time, I think. >> >> Regards >> Helmut >>

