code: @Override
  	public void addContextCustomizers(
  			TomcatContextCustomizer... tomcatContextCustomizers) {
  		Assert.notNull(tomcatContextCustomizers,
  				"TomcatContextCustomizers must not be null");
  		this.tomcatContextCustomizers.addAll(Arrays.asList(tomcatContextCustomizers));
  	}
docs: Add {@link TomcatContextCustomizer}s that should be added to the Tomcat
  {@link Context}.
  @param tomcatContextCustomizers the customizers to add