code: @Override
  	public Url mapHandler(final IRequestHandler handler)
  	{
  		for (final IRequestMapper requestMapper : this.requestMappers)
  		{
  			final Url url = requestMapper.mapHandler(handler);
  			if (url != null)
  			{
  				return url;
  			}
  		}
  		return null;
  	}
docs: {@inheritDoc}