I have a problem using MultiPartRequest method, if the file is more than 15 ko I have an Error 500, Error in server external filter. My code line is MultipartRequest multi = new MultipartRequest(request, dirName, 10 * 1024 * 1024); I use a HTTP Protocol. The server is DOMINO, the HTTP Server is Websph�re. Is somebody had already this problem and may he help me ? thank you.