ok, found the problem: MyFacesExtensionsFilter didn't had a matching <filter> defined with the same name. I used the name extensionsFilter....
BTW after correcting I realise that one has to put the commons-fileupload.jar into the lib but this produces a lot of warnings! like: WARNING: Invalid tag found: unexpected input while looking for attr name or '/>' at line 209 any idea why? (if they stay as warning only...) Thanks! -- View this message in context: http://www.nabble.com/IllegalArgumentException-while-integrating-Tomahawk-1.1.3-in-JSF-1.1-tf2866402.html#a8013250 Sent from the MyFaces - Users mailing list archive at Nabble.com.

