https://github.com/spring-projects/spring-framework: Spring Core (Spring IO)
  • Juergen Hoeller 
Support classes for reading annotation and class-level metadata.

/**
 * Support classes for reading annotation and class-level metadata.
 */
@NonNullApi
@NonNullFields
package org.springframework.core.type.classreading;

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