code: public void setDeploymentInfoCustomizers(
  			Collection<? extends UndertowDeploymentInfoCustomizer> customizers) {
  		Assert.notNull(customizers, "Customizers must not be null");
  		this.deploymentInfoCustomizers = new ArrayList<>(customizers);
  	}
docs: Set {@link UndertowDeploymentInfoCustomizer}s that should be applied to the
  Undertow {@link DeploymentInfo}. Calling this method will replace any existing
  customizers.
  @param customizers the customizers to set