code: public void addServletRegistrationBeans(
  			ServletRegistrationBean<?>... servletRegistrationBeans) {
  		Assert.notNull(servletRegistrationBeans,
  				"ServletRegistrationBeans must not be null");
  		Collections.addAll(this.servletRegistrationBeans, servletRegistrationBeans);
  	}
docs: Add {@link ServletRegistrationBean}s for the filter.
  @param servletRegistrationBeans the servlet registration beans to add
  @see #setServletRegistrationBeans