class WebPasswordHandler 
{
  public WebPasswordHandler(HttpServletRequest request,
                            HttpServletResponse response,
                            AttributeEntry [] aliases,
                            String url,
                            boolean urlforward)
    throws FormatError, ParameterError;
  public WebPasswordHandler(HttpServletRequest request,
                            HttpServletResponse response,
                            String aliasesFile,
                            String url,
                            boolean urlforward)
    throws IOException, SecurityException, FormatError,
    ParameterError;
 
  public void handle(Callback[] callbacks)
    throws IOException, UnsupportedCallbackException;
}