final DiskFileItemFactory fileItemFactory = createDiskFileItemFactory();
        final ServletFileUpload upload = newServletFileUpload(fileItemFactory);
        upload.setHeaderEncoding(request.getCharacterEncoding());
        upload.setSizeMax(getSizeMax());
        return upload;
    }

    protected ServletFileUpload newServletFileUpload(final DiskFileItemFactory fileItemFactory) {