https://github.com/spring-projects/spring-framework: Spring Web (Spring IO)
  • Juergen Hoeller 
Common infrastructure for handler method processing, as used by Spring MVC's org.springframework.web.servlet.mvc.method package. 
/**
 * Common infrastructure for handler method processing, as used by
 * Spring MVC's {@code org.springframework.web.servlet.mvc.method} package.
 */
@NonNullApi
@NonNullFields
package org.springframework.web.method;

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