docs: public Response serve( String uri, String method, Properties header, Properties parms )
    {
      myOut.println( method + " '" + uri + "' " );
  
      Enumeration e = header.propertyNames();
      while ( e.hasMoreElements())
      {
        String value = (String)e.nextElement();
        myOut.println( "  HDR: '" + value + "' = '" +
            header.getProperty( value ) + "'" );
      }
      e = parms.propertyNames();
      while ( e.hasMoreElements())
      {
        String value = (String)e.nextElement();
        myOut.println( "  PRM: '" + value + "' = '" +
            parms.getProperty( value ) + "'" );
      }
  
      return serveFile( uri, header, myRootDir, true );
    }