https://github.com/spring-projects/spring-framework: Spring Beans (Spring IO)
  • Juergen Hoeller 
Classes supporting the org.springframework.beans package,
such as utility classes for sorting and holding lists of beans.

/**
 * Classes supporting the org.springframework.beans package,
 * such as utility classes for sorting and holding lists of beans.
 */
@NonNullApi
@NonNullFields
package org.springframework.beans.support;

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