code: public static String toAbsolutePath(final String relativePagePath)
  	{
  		final HttpServletRequest req = (HttpServletRequest)((WebRequest)RequestCycle.get()
  			.getRequest()).getContainerRequest();
  		return RequestUtils.toAbsolutePath(req.getRequestURL().toString(), relativePagePath);
  	}
docs: Helper method for the migration from wicket-version 1.5.x to 6.x.
  
  @param relativePagePath
  the relative page path
  @return the string