br.addItem("Limit Size");
        br.addElement(limitSize);
        final String msg = br.buildExceptionMessage();
        throw new Forced404NotFoundException(msg, UserMessages.empty()); // heavy attack!? so give no page to tell wasted action
    }

    protected DiskFileItemFactory createDiskFileItemFactory() {
        final File repository = createRepositoryFile();
        return new DiskFileItemFactory((int) getSizeThreshold(), repository);

    /** The key of the message: {item} is invalid {type} barcode. */
    public static final String CONSTRAINTS_EAN_MESSAGE = "{constraints.EAN.message}";

    /** The key of the message: {item} is not a well-formed email address. */
    public static final String CONSTRAINTS_Email_MESSAGE = "{constraints.Email.message}";

    /** The key of the message: Length of {item} must be between {min} and {max}. */