https://github.com/spring-projects/spring-framework: Spring Web (Spring IO)
  • Juergen Hoeller 
Contains a variant of the application context interface for web applications,
and the ContextLoaderListener that bootstraps a root web application context.

/**
 * Contains a variant of the application context interface for web applications,
 * and the ContextLoaderListener that bootstraps a root web application context.
 */
@NonNullApi
@NonNullFields
package org.springframework.web.context;

import org.springframework.lang.NonNullApi;
import org.springframework.lang.NonNullFields;